Updates Windows 7 to fix a problem in which the computer may stop responding or restart. This problem occurs if you put the computer into sleep or into hibernation while a virtual machine is running in Windows Virtual PC.
Fixes an issue in which Windows Explorer stops responding when you extend the full-screen display on a virtual machine that is running Windows 7 to multiple monitors on a computer that is running Windows 7 or Windows Server 2008 R2.
Fixes an issue in which you receive a Stop error 0x0000007a on a virtual machine that is running on the CSV on a Windows Server 2008 R2-based failover cluster node when you move the CSV owner to another cluster node, and you change the state of CSV to...
Fixes an issue in which the following error message is logged in the event log when you back up a virtual machine in Windows Server 2008: "The number of volumes reverted does not match the number of volumes in the snapshot set for virtual machine."