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Windows 8.1 refuses to boot after Tuesday Update
Last Tuesday Microsoft issued their August updates for fixes and security, unfortunately it renders Windows 8.1 completely to un-bootable for a lot of end-users as they end up with a black failure screen. The issue resides in two updated files. On the Microsoft support forum it rains complaints about the so called August update. Read more after the break.
Users that have a system restore point enabled can retrieve access to the OS in the pre-update state and get Windows going again. Those that have system restore disabled are in a world of hurt and might have to reside to a system OS backup, or revert to a clean install. For those with a system restore point, please make sure that you uninstall the following updates: KB2982791 and the optional update KB2975719 as these are the two responsible for all this.
The problem identifies itself (for those affected) after your system has had two reboots after installing the August update. Microsoft explains that the problems are being investigated and that they are looking for a solution with the team responsible for the KB2982791 and KB2975719 updates.
Yeah ... FAIL.
Update: Looks like a fix may have been found! Here are the steps posted by Voyager72.
After restoring my pc to the pre-patch state, i was able to install these succesfully by taking the following steps:
1. Reboot into safe mode with command prompt
2. Delete fntcache.dat from c:\windows\system32
3. Reboot back to windows 8.1. The fntcache.dat file is auto-recreated.
4. Install the two famous updates and pray
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maize1951
Senior Member
Posts: 250
Joined: 2011-09-30
Senior Member
Posts: 250
Joined: 2011-09-30
#4894571 Posted on: 08/15/2014 06:31 PM
Good reason to upgrade to Windows 7.
Good reason to upgrade to Windows 7.
PieEyedPiper
Senior Member
Posts: 626
Joined: 2005-10-09
Senior Member
Posts: 626
Joined: 2005-10-09
#4894577 Posted on: 08/15/2014 06:50 PM
See post #28 and the one directly above yours.
Good reason to upgrade to Windows 7.
See post #28 and the one directly above yours.
SoloCreep
Senior Member
Posts: 686
Joined: 2005-07-31
Senior Member
Posts: 686
Joined: 2005-07-31
#4894584 Posted on: 08/15/2014 06:59 PM
Whew I got lucky. I thought Win 7 was everything but I really love Windows 8.1.
Whew I got lucky. I thought Win 7 was everything but I really love Windows 8.1.
Vlad00n
Junior Member
Posts: 9
Joined: 2009-10-07
Junior Member
Posts: 9
Joined: 2009-10-07
#4894588 Posted on: 08/15/2014 07:06 PM
Well I have installed KB2982791 update, but not the optional one KB2975719, and my windows is booting fine. I don't find it necessary to install optional updates, don't think they are important. Good luck to everyone with that problem, hope you solve it.
Well I have installed KB2982791 update, but not the optional one KB2975719, and my windows is booting fine. I don't find it necessary to install optional updates, don't think they are important. Good luck to everyone with that problem, hope you solve it.
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Senior Member
Posts: 19558
Joined: 2010-04-21
So glad i stuck with my 7 ultimate.
Cba messing around with crap like this.
Just pray to god(even though i'm an Atheist)that Win 9 is good out of the box.
Since i suppose i'll be forced to get it for DX12
Don't think 7 was safe from this update either looking at the fix for the font cache
http://www.infoworld.com/t/microsoft-windows/users-find-fix-botched-kb-2982791-and-kb-2970228-windows-update-248476
QUOTE:
I had the same problem on two computers, both win7 64bits.
I could solve it by booting from a DVD and removing the following file:
c:\Windows\System32\FNTCACHE.DAT