I restored proper operation of Win8 using this workaround of Senator949 : http://answers.microsoft.com/en-us/windows/forum/windows_7-desktop/the-desktop-window-manager-has-encountered-a-fatal/ae44c9ea-3b52-451d-a371-91ae375ce353?page=2 After that, the hybrid sleep of Win8 is repaired and the bug disappeared.
I restored proper operation of Win8 using this workaround of Senator949 : http:// answers. microsoft. com/en- us/windows/ forum/windows_ 7-desktop/ the-desktop- window- manager- has-encountered -a-fatal/ ae44c9ea- 3b52-451d- a371-91ae375ce3 53?page= 2
After that, the hybrid sleep of Win8 is repaired and the bug disappeared.