Isnt real Fix just a way how we was able to get Back on all of them to a Working System
i can Just explain in few Steps
1 Backup the HDD from the Mashine that doesent booted on any Other Working one (Acronis True Image or any Other Backup Software)
2 Put The Not Working HDD on a Mashine with for Example AMD Phenom CPU Athlon X3 CPU or Similar
3 Try Booting the Not Working HDD on That Mashine if Fails Look for IDE AHCI Settings in Bios (DEPENDS on Installed System and Drivers)
4 After it Starts to Boot it will install the KB4056894
5 Go to system Settings Programs and Unninstall the KB4056894
6 Reboot
7 Maybe it will Install on that Reboot another Update think it was at most some KB with 18 at the end doesent looked Deeper from December
8 After Reboot go to Windows Update and let it Search for new ones
9 it will find the KB4056894 and maybe Drivers for The Computer where you Switched the HDD Disable the KB4056894 and The Driver Updates
10 Shutdown
11 Disconnect The HDD from The Phenom Computer put it Back to the Mashine where it was come From
12 Boot and Hope that the next Update dont Makes Similar Things with your Working Computer
It was a Solution that helped us Yesterday to get them all back to Life where Windows repair was not able or where no Backups where existing or any Other Backup Point on the Windows 7 Mashines