Hibernation stopped working in Windows Seven SP1?

Question

Windows

After installing SP1, sleep mode stopped working: when you switch to it, the screen goes blank, but the computer itself continues to work (music plays). After that, the only way is to hard power off the laptop. After that, the computer boots up, and a message appears in the system log about an incorrect power off.
I tried different options - disabling hibernation, hybrid sleep mode, updated the video card drivers - no result.
The English-speaking Internet is full of reports of such errors, but Microsoft does not offer anything concrete.
Can anyone help with advice?

Answer 1

At me on the seven everything perfectly works with SP1.
I think the update will fix it. So keep an eye on Windows Update ;)

Answer 2

In the event log, what about this? Should swear at something iron thread ...

Answer 3

somehow there was a similar situation, it turned out that after installing debian and, accordingly, grub, which removed the bootable flag from the windows area, which was the problem