Windows 8 Consumer Preview issues

Windows 8 Consumer Preview issues

Can this thread be a place for issues seen on this platform? The few posts I've seen mentioning it are scattered, so I thought one place would make sense.

I'll start with one that's pretty vague for the moment but which I believe is tied to Win8 (x64 in my case, but I'm not using Opera x64 yet). I suspect it's related to a bad interaction with the video driver (Intel HD 3000), since video drivers in general seem to be more unfinished than the rest of Win8, but that's just a guess. I've tried a couple different versions of the driver with no change in behavior.

I started with Win8 at the beginning of the month, and all was well with 1325. Build 1328 came out mid-month though, and starting shortly after that I've experienced what basically amounts to lockups. It's not a total freeze--I might be able to switch among open apps for a while, and I can open Task Manager. But I can't actually do anything (for example, ending tasking on Opera, which doesn't appear hung in TaskMan, does nothing). It's as if the screen isn't representing reality. Eventually, I just hard reset, since shutdown/restart doesn't work either.

The same thing happens with 1351/1359, which I only tried briefly since they're generally unstable for people anyway and so not something that I can use to clarify anything. It doesn't happen with 1325 though. I haven't noted that doing anything in particular with Opera triggers this. Having it running for a while seems to be enough, though it can sometimes go a day without showing the problem; other days, it can happen 3 or 4 times.

Hardware acceleration is disabled in all cases. Intel isn't supported anyway.

@Janos, I hate loose ends, and that's what your system is: the only one so far that doesn't seem to respond to the two BIOS settings being disabled. Only two remaining things come to mind: is there some other plausible non-default BIOS setting that you made that possibly could be tripping you up? The final thing is the O/C'g. You mentioned all the things that you CAN run without incident, but what if Opera turns out not to be one of them? Would it be a chore to try running non-O/C for a while just to see? In upgrading your BIOS, you probably had to reset to defaults anyway (or they were reset for you), so you're probably used to having to set it all up again.

There is no way a simple software could freeze the whole system in less than 1 minute if I could run this test for 30+ minutes.

This is a fresh screenshot, I ran it again right now (while I was away from my PC) to make sure.

But very well, I will reset my tweaks (I can save and reload them later) and post screen photos of every UEFI settings tomorrow.

And may be I will reinstall the whole OS because I made some messy things in the first few days while I tried to figure out and test some things + I went through a lot of Opera related crashes (sometimes it caused some lost registry values, etc...).


By the way, there is one thing. -> TurboBoost.
With this CPU, I have virtually unlimited control over the clock multiplier but the overclocking actually happens through TurboBoost. I technically adjust the TurboBoost limit with the manual multiplier. (And now it's "permanent turbo" since I disabled the power saving functions...)

Dis you disable TurboBoos as well? Did you ever enable this?
I can't disable it if I set up a manual multiplier, so it's active right now...

I have disabled EIST and C States previously, and Opera 12 still freezes the system.

Microsoft had contacted me, and I sent in a minidump. I could BSOD the system whenever the soft freeze occurs, hencing obtaining the dump needed.

I noticed it happens very consistently with Youtube flash videos. It happens even with all plugins disabled, but it occurs a lot more consistently with flash videos.

@janos, I have an Intel board so don't bother with any of the performance tweaks, but I do see from the BIOS manual that Turbo Boost is certainly related to the other settings and so is potentially at play in this mess. It's enabled by default here, and I've never changed it or any of its sub-settings. BTW, about the C States setting, it says that it's required for the full function of Processor Turbo Boost.

@CKtalon, don't forget that 11.64 also crashes for you in the same way, and I haven't heard that happening to anyone else. When you combine that with EIST/C States not helping, you have to consider that you have some different but similar problem. You might go back in the Desktop Blog several pages to grab 12.00.1325 to see if you can crash that one. I know for sure, since I've been using it for the last two months, that it doesn't show the problem.

Just to be clear, you're talking about this method for creating the dump file, right? Because the type of crash we're talking about here never leads to a BSOD, and so no dump file is created automatically.

Originally posted by rseiler:

Because the type of crash we're talking about here never leads to a BSOD, and so no dump file is created automatically.

You can enable a hotkey that will cause a BSOD + Crash Dump to be created from whatever state the system is in (Ctrl + Scroll + Scroll?), so even with this type of freeze it is possible, indirectly.

@CKtalon, could you see how you get on with Hyper-V Enabled as I suggest? I'm still rocking not a single issue.

Here is my full UEFI config:

http://img840.imageshack.us/img840/1042/24593345.jpg
http://img705.imageshack.us/img705/9793/6166139.jpg
http://img163.imageshack.us/img163/6140/29297259.jpg
http://img600.imageshack.us/img600/6645/69189873.jpg
http://img684.imageshack.us/img684/6084/60476362.jpg
http://img405.imageshack.us/img405/3779/18138970.jpg
http://img233.imageshack.us/img233/3185/19216983.jpg
http://img542.imageshack.us/img542/2419/78099266.jpg
http://img84.imageshack.us/img84/1598/62472702.jpg
http://img815.imageshack.us/img815/6981/64888961.jpg
http://img685.imageshack.us/img685/2387/61707543.jpg
http://img820.imageshack.us/img820/3622/35985093.jpg
http://img256.imageshack.us/img256/2793/53765436.jpg
http://img585.imageshack.us/img585/6660/59259992.jpg
http://img834.imageshack.us/img834/8630/11097365.jpg
http://img528.imageshack.us/img528/9410/51386640.jpg
http://img692.imageshack.us/img692/7894/91743971.jpg
http://img13.imageshack.us/img13/8981/99722748.jpg


And this is what I get if I set everything to Auto -> There is no TurboBoost setting anymore, so I can't control that at all.
I still get system hang this way in less than 1 minute after I start using Opera.

http://img207.imageshack.us/img207/2443/39834750.jpg
http://img228.imageshack.us/img228/8002/49596653.jpg
http://img51.imageshack.us/img51/5396/11282359.jpg


What do you think about the High Precision Event Timer?
I never fully understood what it is exactly. I mean... Which kind of softwares may use it in what cases, or what happens if a program would use it but it's not available...? But some people seem to think it's better to be Disabled for some unknown reason.

In the meantime, I also updated my AMD VGA card driver. It didn't change anything about this Opera hang. But may be I should disable the GPU acceleration...

This is confusing, but if in 6139 you have SpeedStep disabled, and in 6983 you have all the C States stuff disabled, why does that same image show a differing min/max CPU speed as if it's still going to be moving up and down between 1.6 and 3.3? That's what disabling those settings is supposed to prevent, right? I may be wrong, but all along I've been thinking that this shifting CPU speed is the crux of whatever this kooky issue is. When the BIOS is showing those two speeds, and you later bring up Task Manager (the new one) and look at the Performance tab, do you ever see the CPU down at 1.60Ghz, as I do right now with the above settings enabled? Is there possibly something else that needs to be disabled for you to make it stick on 3.3? If there is, try it.

I'll read about High Precision Event Timer in a little bit, since I've never heard of it.

Yes, it wouldn't hurt to make the GPU vanilla, too. The acceleration is for SLI?

Originally posted by rseiler:

Yes, it wouldn't hurt to make the GPU vanilla, too. The acceleration is for SLI?

No. There is only one GPU in my system and that's not overcloked right now (the OC utility does not work under Win8 yet).
I meant the GPU acceleration of Opera. I remember to read about it that Opera 12 started to use the GPU(s) (commonly called as "hardware acceleration").

What I see with various Windows utilities is that my CPU clock is fixed after I disable the power saving functions.
I reset my OC settings, so it's always 4502Mhz -> both in idle and under load, there are no dynamic adjustments (neither clock, not voltage).

Originally posted by janos666:

I meant the GPU acceleration of Opera. I remember to read about it that Opera 12 started to use the GPU(s) (commonly called as "hardware acceleration").

It's off by default, so unless you've explicitely enabled it, it's not this.

In fact, in the RP, it's not Opera at all. I first noticed the crashes with IE10 and actually downloaded Opera only to see if it fixed it! I can only guess since the browser is the thing that is causing issues, is that the combination of network traffic through the card and constant graphics redrawing causes something to screw up somewhere.

Have you tried the Hyper-V workaround? May be tempting fate by saying it still, but I haven't had a single issue yet and it's nearly 24 hours on of virtually constant use (sans 6 hours for sleep!).

Originally posted by iGod:

Have you tried the Hyper-V workaround?

Looks promising. I could open up 10+ tabs and navigate on them randomly for a few minutes and still no sign of a system hang yet.

The memory access speed looks a bit slower in synthetic tests though.

Originally posted by janos666:

The memory access speed looks a bit slower in synthetic tests though.

Yes, like I mentioned previously there will be slightly degraded performance due to your OS being ran on top of the hypervisor and becoming essentially virtualised itself (note I'm saying essentially in that it's not 100% virtualised, it still has direct access to some hardware (GPU, etc), and "enlightened" access to everything else).

To be fair, though, in practical usage (including compiling, video rendering and gaming) I haven't noticed a blazing difference just yet... and the ability to browse the internet with no issues? Well it's a no brainer for me

Let us know how you get on with it. Some people voted my cross-post on TechNet forums either, so I think it's looking positive. Of course not a permanent solution, but if it fixes it so I can use Win8 for now before RTM, I'm a happy man

Originally posted by CKtalon:

I noticed it happens very consistently with Youtube flash videos. It happens even with all plugins disabled, but it occurs a lot more consistently with flash videos.

I noticed the same

Originally posted by janos666:

Originally posted by rseiler:

Yes, it wouldn't hurt to make the GPU vanilla, too. The acceleration is for SLI?

What I see with various Windows utilities is that my CPU clock is fixed after I disable the power saving functions.
I reset my OC settings, so it's always 4502Mhz -> both in idle and under load, there are no dynamic adjustments (neither clock, not voltage).

Understood, but when set the other way, isn't it odd that the BIOS would still reference the clock rates as if it'll continue to fluctuate? I wonder if that's just a mistake in the BIOS display or reality?

I thought I'd add that HWMonitor is yet another program that causes the problem, though based on what it is and when the last version was released, it's not a great surprise (see up the thread for how AIDA64 once had the same issue). Why browsers (though not Firefox!) cause the same problem continues to mystify.

Originally posted by rseiler:

Understood, but when set the other way, isn't it odd that the BIOS would still reference the clock rates as if it'll continue to fluctuate? I wonder if that's just a mistake in the BIOS display or reality?

I guess the UEFI config screen tells me the raw facts from the CPU. It's an information about the factory specifications: min and max clocks possible -> without manual override, of course...

By the way, I am still stable with Hyper-V enabled.
I understand it's a temporal workaround but I fear the RTM version won't change in this aspect unless somebody isolates the problem!
(I would say we actually failed to narrow it down to fluctuating CPU clocks, unless I have a special UEFI bug or something...)

Originally posted by rseiler:

@janos, I have an Intel board so don't bother with any of the performance tweaks, but I do see from the BIOS manual that Turbo Boost is certainly related to the other settings and so is potentially at play in this mess. It's enabled by default here, and I've never changed it or any of its sub-settings. BTW, about the C States setting, it says that it's required for the full function of Processor Turbo Boost.

@CKtalon, don't forget that 11.64 also crashes for you in the same way, and I haven't heard that happening to anyone else. When you combine that with EIST/C States not helping, you have to consider that you have some different but similar problem. You might go back in the Desktop Blog several pages to grab 12.00.1325 to see if you can crash that one. I know for sure, since I've been using it for the last two months, that it doesn't show the problem.

Just to be clear, you're talking about this" target="_blank">http://msdn.microsoft.com/en-us/library/windows/hardware/ff545499(v=vs.85).aspx]this method for creating the dump file, right? Because the type of crash we're talking about here never leads to a BSOD, and so no dump file is created automatically.

Yes, I force BSOD the system using the hotkeys.

11.64 freezes for me, but I had 12 installed previously. Some people have speculated that having 12 installed, and going back to 11 might not make a difference there. At this point if I were to clean install, I'll probably go back to Win 7 instead.

I believe Microsoft is on to it, and will probably fix it before RTM.

Maybe it would be more constructive for Microsoft to post over here
http://answers.microsoft.com/en-us/windows/forum/windows_8-performance/windows-8-release-preview-freezing-problem-on-my/58f28dae-1bb7-4e19-a32d-16c92478622f?tab=AllReplies&page=1&tm=1339884816679

Originally posted by CKtalon:

11.64 freezes for me, but I had 12 installed previously. Some people have speculated that having 12 installed, and going back to 11 might not make a difference there. At this point if I were to clean install, I'll probably go back to Win 7 instead.

Interesting point. May be I still had the problem after I disabled the power management features because I already caused this hang a few times and something got broken.

But I feel the same: If I were to reinstall the OS, then I would use my Win7 disc, not this.
I have various minor issues which aren't big enough to make me re-install Win7, but if I re-install the OS anyway then these sum up...

Originally posted by janos666:

Interesting point. May be I still had the problem after I disabled the power management features because I already caused this hang a few times and something got broken.

But I feel the same: If I were to reinstall the OS, then I would use my Win7 disc, not this.
I have various minor issues which aren't big enough to make me re-install Win7, but if I re-install the OS anyway then these sum up...

I'll go try that in RP: uninstalling 12 and installing 11.64.

The RTM version in all likelihood will be floating around by the first half of August, so we won't have to endure this problem more than a couple months. It's inconceivable that the problem would be present then, unless MS is taking a "Windows ain't done until Chrome won't run" position, which is unlikely despite how much they hate Google. I hope this doesn't turn out to be something vendors have to fix though, like Aida did, since if that's the case, no doubt Google will assign an army to remedy the problem, but this thread was around for a couple months before receiving comment from Opera. Maybe v13?

To be honest, I fear about the .NET issue a lot more than I fear about this browser problem.
They say they already fixed them in the internal builds but we didn't get a hotfix for the RP. Why not...?
I am just simply lucky I don't actually need any of the unusable .NET dependent applications right now (like AutoCAD C3D 2013, because I won't work with that software during the summer) but it's a serious problem. -> Which means that if you really need .NET, you can't extensively test the RP version of Win8 (may be from a virtual machine from time-to-time but not as a main everyday OS).

Originally posted by janos666:

Which means that if you really need .NET, you can't extensively test the RP version of Win8 (may be from a virtual machine from time-to-time but not as a main OS).

Hmmmm, I'm a .NET Developer and work with Visual Studio on Windows 8 every single day, have never noticed an issue with this.

What's the problem exactly (sorry if contained within this thread, might have missed it!)?

Just to confirm, by the way, this really isn't Opera's, Google's or whoever's problem - This is an issue with Intel's hardware. I haven't seen anybody with an ATI Chipset report this problem, and subsequently it also only seems to be on a UEFI system also.

Originally posted by iGod:

Just to confirm, by the way, this really isn't Opera's, Google's or whoever's problem - This is an issue with Intel's hardware. I haven't seen anybody with an ATI Chipset report this problem, and subsequently it also only seems to be on a UEFI system also.

I don't follow your last sentence (most people here don't have UEFI), but I completely disagree that this is Intel's problem. Core iX chips have been out for multiple years now, and so have the corresponding chipsets. Along comes Windows 8 this year, some programs show up an issue with being run under this new OS, and it's Intel's problem?! Just because it's only showing up on the Intel side hardly means that it's Intel's problem.

Originally posted by rseiler:

I don't follow your last sentence (most people here don't have UEFI), but I completely disagree that this is Intel's problem. Core iX chips have been out for multiple years now, and so have the corresponding chipsets. Along comes Windows 8 this year, some programs show up an issue with being run under this new OS, and it's Intel's problem?! Just because it's only showing up on the Intel side hardly means that it's Intel's problem.

I never said it was Intel's problem; I said it was Intel's hardware causing the problem. Microsoft need to fix this in their default drivers for the chipset, or Intel need to provide MS with them to include with the distribution.

The point I'm trying to get across is that this isn't an individual software issue as it's prevalent in all browsers.

Originally posted by iGod:

Originally posted by janos666:

Which means that if you really need .NET, you can't extensively test the RP version of Win8 (may be from a virtual machine from time-to-time but not as a main OS).

Hmmmm, I'm a .NET Developer and work with Visual Studio on Windows 8 every single day, have never noticed an issue with this.

What's the problem exactly (sorry if contained within this thread, might have missed it!)?

Just to confirm, by the way, this really isn't Opera's, Google's or whoever's problem - This is an issue with Intel's hardware. I haven't seen anybody with an ATI Chipset report this problem, and subsequently it also only seems to be on a UEFI system also.

May be it's a problem with the Intel drivers. Some of them has to be integrated to the Win8 resources and pre-installed with the system. And I also tried to install the latest beta versions: Intel chipset drivers and Intel Management Engine Interface drivers.

.NET -> I couldn't even install AutoCAD 2013 without editing the install.ini file (to exclude the .NET check). And now that it's installed, it crashes after a few minutes of run. And I read on various forums that everybody has this problem with the Autodesk products. They don't install normally and they crash.
And I heard about other .NET issues on various forums but this is a topic about Opera, so let's not go that far from the main topic...

Originally posted by iGod:

I never said it was Intel's problem; I said it was Intel's hardware causing the problem. Microsoft need to fix this in their default drivers for the chipset, or Intel need to provide MS with them to include with the distribution.The point I'm trying to get across is that this isn't an individual software issue as it's prevalent in all browsers.

I see what you meant, though vendors (see the Aida thread) have fixed the problem with their products before, so it can be done, and the problem is not present in all browsers: witness all Opera 12 builds up through 1325 (solid for two months, which is quite a test period), and maybe even 11.64 (still testing). How can that be explained? Also, I've yet to make Firefox crash. If it was some overriding issue, it should be smiting all equally, but that's not happening.

Originally posted by rseiler:

I see what you meant, though vendors (see the Aida thread) have fixed the problem with their products before, so it can be done, and the problem is not present in all browsers: witness all Opera 12 builds up through 1325 (solid for two months, which is quite a test period), and maybe even 11.64 (still testing). How can that be explained? Also, I've yet to make Firefox crash. If it was some overriding issue, it should be smiting all equally, but that's not happening.

Well my story goes a little like this: Opera snapshots were pissing me off on Win7 by the time I came to Win8RP installation, so I didn't install anything!

Used IE perfectly fine for about a week or two with only the odd freeze which I never realised was related to the browser initially. When they became more frequent I tried Firefox and had the same issue, so Chrome, etc until finally Opera 11.64 which still produced the same issue. I only upgraded to Opera 12 yesterday and obviously the issue was still present which led me to come up with my workaround.

Also; AIDA may have fixed issues with their product, but that is some form of benchmarking tool? That's going to be going straight to drivers, and if they're different in Windows 8 then of course it could cause issues - I doubt this is related but haven't seen a thread discussion on this.

EDIT: I just had a quick look for that thread on AIDA's forums, they are doing lookups directly on hardware which is what would have caused the issue as above.

I can't explain our differences.

Update on what's what here:

CP Crash:
-Opera 12.00.1328 and later

CP OK:
-Opera 12.00.1325 and earlier
-Opera 11.64
-All recent Firefox builds
-All recent Chrome builds
-IE10

RP Crash:
-Opera 12.00.1328 and later
-Chrome 19 and 21

RP OK:
-Firefox 13.x
-Opera 11.64

Note: IE10 has not been tested enough in RP for me to know.

^^ i'm frequently use IE10 (since the OS crashes using Opera or Chrome) on RP x64 without any issues so far... bye!

About Drivers, i don't know if Janos666 spoke about the new graphics drivers released by Intel a couple of day ago, but i installed them and it did not fixed anything about system hanging.

To contribute, i want to say it is not a UEFI problem. On my notebook i disabled this options and i still have problems.

Finally, i enabled Hyper-V and i did not noticed any crash since morning. It's a great thing!

Originally posted by Cristallix:

To contribute, i want to say it is not a UEFI problem. On my notebook i disabled this options and i still have problems.

Great, thanks I was wondering about that still!

Originally posted by Cristallix:

Finally, i enabled Hyper-V and i did not noticed any crash since morning. It's a great thing!

Glad to hear it's working for you, too

Today i tested again but same issue,system freeze within 1 min.

Opera 12
H/W OpenGL
Windows 8 64bit RP

Then i disabled C3/C6 in the Bios and guess what??? its working fine now

Disabling processor states is not a proper solution at all. I will be waiting for solution from Microsoft. Because this is a bug in Windows 8, not in Intel's CPUs.

Originally posted by Andrey-VI:

Disabling processor states is not a proper solution at all. I will be waiting for solution from Microsoft. Because this is a bug in Windows 8, not in Intel's CPUs.

I think it's safe to say we all know that - the community provided workarounds are definitely only workarounds to the issue, and certainly not fixes.

The combination of Windows 8 and Intel's hardware (or, at the very least, Intel hardware's drivers (read: NOT Intel's drivers, as default ones aren't!)) is cause for several explosions

Hey mubaidr, wanna give this a try (I'm about done for the day)?

Elevated command prompt:

bcdedit /set disabledynamictick yes

Source:
http://www.withinwindows.com/2012/06/28/workaround-for-windows-8-freezing-issues

Originally posted by rseiler:

Hey mubaidr, wanna give this a try (I'm about done for the day)?Elevated command prompt:bcdedit /set disabledynamictick yesSource:http://www.withinwindows.com/2012/06/28/workaround-for-windows-8-freezing-issues

Ok, I will try this weekend, will let u know about any progress.

It's working well for 1491 here. Before implementing it, 1491 froze RP in <1min, but after I couldn't reproduce a freeze in either CP or RP.

Edit: Sigh. It just took longer than expected. This is not a fix.

A way to tell if you have the above command enabled is with this command (it could be easy to forget that it's running on a given system otherwise):
bcdedit /enum

Incidentally, I don't know if you've been testing right along with Chrome, but either I had a run of incredibly good luck or v21.0.1180.15 doesn't trigger the problem in RP (and I mean without the workaround). Versions as recent as a week ago or so certainly did, and reliably so.

I have had the same problem with Opera and the Win8 Release Preview. The system freezes up but you can still switch windows and when you do that it hard freezes and you can't even open task manager. I don't know what is causing it though. I thought it might be Flash because of the recent problem with Flash crashing Firefox. I edited the flash file types (.swf, .flv, etc) in Opera so it wouldn't load but it still freezes the computer. Oddly enough I was having the same type of problem (though less frequently) with the Consumer Preview, but I wasn't even using Opera on that install. This freezing problem only came up on the Release Preview when I decided to install Opera and it seems to freeze much more quickly (within minutes instead of hours or days). I can only guess that Opera is making some type of incompatible API call that causes Windows 8 or a system driver to really freak out. It's odd to see the system actually freeze up like that though. Opera should only crash, not take the whole system down with it. There is nothing in the event viewer about this problem and it doesn't create a memory dump file. I did notice that when the system freezes that the hard drive light stays on/flashing so maybe this is a memory allocation problem and then the system starts thrashing the swap file for spare memory. It sure happens really quick from the OS being perfectly fine to being totally frozen.

My computer: Asus Sabertooth p67 motherboard, i7 2500K, 16GB RAM, GeForce GTX460 WHQL drivers 302.82

@rseiler: Thank you for you like about disabled ticks. I disabled Hyper-V and run the command. I will see if it will change something about stability but i can say that it solves others problems completely unrelated.

On consumer preview version of windows 8, i had installed BatteryBar, a little soft which show more informations about your battery in the taskbar. On release preview i was not able to see this software. Now by disabling ticks i can see it again in the taskbar! An other problem with the taskbar: when you lock or unlock the taskbar, an visual element is created to show you a sort of button who says how you can move the taskbar. By the same process now it appears like magic! Definitely, there a problem with the taskbar.

i have same problem =(
opera [1467]
Notebook
integrated intel hd3000 graphics card + nvidia gt550m
intel core i5 cpu
Win8 RP 8400 x64

@Snake, you could try the bcdedit /set disabledynamictick yes (from an admin prompt, followed by a reboot) from earlier, but it's not necessarily going to work for everyone (it didn't for me in CP). Hyper-V really should work for everyone.

Originally posted by rseiler:

@Snake, you could try the bcdedit /set disabledynamictick yes (from an admin prompt, followed by a reboot) from earlier, but it's not necessarily going to work for everyone (it didn't for me in CP). Hyper-V[/URL" target="_blank">http://technet.microsoft.com/library/hh857623.aspx]Hyper-V[/URL] really should work for everyone.

yeeeee thanks!it helped.
http://www.withinwindows.com/2012/06/28/workaround-for-windows-8-freezing-issues/

I did the "bcdedit /set disabledynamictick yes " and it looks like everything is working ok for a few days now, no weird freezing. I did encounter a mouse problem where it wouldn't drag and drop but after I restarted explorer.exe it worked again.

Finally, a hotfix for the issue via KB2727113, which should be appearing in Windows Update any time now if it hasn't already. No love for Consumer Preview, but that's to be expected.

"On a computer that is running Windows 8 Release Preview or Windows Server 2012 Release Candidate, the system may randomly stop responding (hang) when you work on multimedia or communication activities. This problem may occur during video editing, unified communications, or other multimedia activities.

"This problem may occur because of an issue in the interaction between the state-machine driving dynamic tick transitions and the state-machine-driving clock rate changes."

Thats some great news!

great new! No problem since yesterday with this patch. Good to see that Microsoft has been aware of this problem.

Originally posted by Cristallix:

great new! No problem since yesterday with this patch. Good to see that Microsoft has been aware of this problem.

Yea! No freezes issue since that patch!