If over the past few days you've been confronted with an unhealthy amount of crashes or blue-screens and recently updated your Windows 7, 8 or 8.1 system, you might have inadvertently grabbed a corrupted hotfix or two from Microsoft. The suspect files have since been removed for download, but that doesn't help you if you've already applied them. Here's how you can find out if you're affected and if so, what you need to do.
Image from Wikimedia Commons.
Microsoft has listed the problem updates in a knowledge base article, KB2982791:
Microsoft is investigating behavior in which systems may crash with a 0x50 Stop error message (bugcheck) after any of the following updates are installed:
2982791 MS14-045: Description of the security update for kernel-mode drivers: August 12, 2014 2970228 Update to support the new currency symbol for the Russian ruble in Windows 2975719 August 2014 update rollup for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 2975331 August 2014 update rollup for Windows RT, Windows 8, and Windows Server 2012
If it turns out that you do have the update, you'll need to go through a number of steps, including booting into safe mode, delving into the registry, deleting the Windows font cache and uninstalling all four of the hotfixes listed above.
It's a bit of a pain, but if it solves your BSODs, it's worth the effort.
Four Recent Microsoft KB patches Can Crash or Corrupt Your Computer [Naked Powershell, via ZDNet]