After (apparently successful) installation of 500-megabyte "Windows XP Mode," installation of 10-megabyte "Windows Virtual PC," after reboot, reports "Failure configuring Windows updates / Reverting changes." Event viewer shows "Package KB958559 failed to be changed to the Installed state. Status: 0x80004005." (Naturally, no WinXPMode is available on the Start menu.)
Running Windows 7 Ultimate x64 on a Sony Vaio Z93 (3 gHz, 8G, 2x256G SSD).
Internet search produced: a) One user reported that uninstalling McAfee solved a similar problem, but I have no McAfee products installed. b) Another user reported that a problem could be too many "network filters," but I don't know how to "fix" that--it's true that I have at least five NICs (802.3, 802.11x, Bluetooth, 3G, OpenVPN) but I use them all. c) Another user reported the problem could be corrupted registry entries but I'm not sure how to check that.
Suggestions welcome ... Thanks!