virtualbox.org

"NOTE 12th Dec: if you have a Windows 7 host that started failing in the last few days then this is most like due to buggy Windows update KB3004394. Microsoft have released a fix here. Do not post about your problem until you have tried their fix."

I ran into the issue described above. I have now installed the above fix KB3024777 for the buggy Windows update KB3004394 but I can not install using VirtualBox-4.3.20-96997-Win.exe (see attached images). No install log file was created even though I ran it on commandline with --logging switch. Antivirus did not registered any blocked.

OS: Windows 7 Professional SP1
Kaspersky Endpoint Security 10

Regards,

kdp

I'm afraid that repairing host OS damage caused by Windows Update is a bit beyond our remit here. I suggest that you Google for advice. The two links below might be a good start.

http://www.infoworld.com/article/285801 ... fende.html

http://www.infoworld.com/article/285911 ... 04394.html

p.s. I deleted your screenshots, which were bulky and added no useful information.