I've discovered that if you install the KB3121212 on Windows 7 (only tested on x64), starting a virtual machine in Virtual PC 2007 (including SP1) will cause the whole PC to crash either with a Blue Screen, or a hard freeze.
Removing the update however fixes running virtual machines.
Screenshot of BlueScreenView: http://i.imgur.com/up6u21U.png
VPC 2007 Crash with KB3121212
Re: VPC 2007 Crash with KB3121212
What about Windows Virtual PC (i. e. that XP virtual machine included with Windows 7)? Would be surprised if Microsoft broke that too since it's an official system component.
Also, does the update break MS VPC on Windows 8.1? Can anyone check that?
Also, does the update break MS VPC on Windows 8.1? Can anyone check that?
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oscareczek
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Re: VPC 2007 Crash with KB3121212
Well, that update refused to install on my OS, I had already installed VPC - I have hidden that update.
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MSUser2013
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Re: VPC 2007 Crash with KB3121212
If it doesn't, Then wouldn't the VMM.sys patch fix this issue on Windows 7?3155ffGd wrote:Also, does the update break MS VPC on Windows 8.1? Can anyone check that?