Black screen on Windows 7 after Ctrl+Alt+Del? Maybe it’s the broken update KB3097877.

A possible fix for 64 Bit Machines according to Heise Forum:

dism /image:X:\ /remove-package
/packagename:Package_for_KB3097877~31bf3856ad364e35~amd64~~6.1.1.1
/scratchdir:X:\temp