Bad news, everyone: my laptop suddenly said "go play with yourself, bro" in it's computer-ish/windows-ish way.
The first swallow it was yesterday, I got the DRIVER POWER STATE FAILURE, which I didn't pay attention actually, just restarted my notebook and everything looked fine until half an hour ago.
I got the same failure today again. I decided, that this is not okay situation, read the http
/www.tomsguide.com/answers/id-2635503/driver-power-state-failure.html restarted the notebook and
Wtf? It doesn't receive my pin, but okay, the password helped. Windows starts. But it looks like it's been reseted to some default state with no drivers at all: no lan, no display driver, no audio etc.
God, why?
All the programs I installed still work.
Windows components, such as, for example, display settins, power options tab in control panel - dead, , no sign-in options available. I can't change Microsoft account to local one with this error message https
/support.microsoft.com/en-us/kb/914232.
What should I do in this case?
Upd
Lenovo Y700-17ISK serial number PFOFPMLG just in case.
Upd
Just got the windows activation error code 0x80070426
Upd
"Troubleshooter doesn't work with this version of Windows" error message when I'm trying to troubleshoot blue screen
Upd.
Message "verify that you have sufficient privileges to start system services"
And another message:
The volume shadow copy service used by system restore is not working.
0x81000202
SFC also doesn't work.
Well, as I understand, I just have no other option, than reinstall Windows
The first swallow it was yesterday, I got the DRIVER POWER STATE FAILURE, which I didn't pay attention actually, just restarted my notebook and everything looked fine until half an hour ago.
I got the same failure today again. I decided, that this is not okay situation, read the http

Wtf? It doesn't receive my pin, but okay, the password helped. Windows starts. But it looks like it's been reseted to some default state with no drivers at all: no lan, no display driver, no audio etc.
God, why?
All the programs I installed still work.
Windows components, such as, for example, display settins, power options tab in control panel - dead, , no sign-in options available. I can't change Microsoft account to local one with this error message https

What should I do in this case?
Upd
Lenovo Y700-17ISK serial number PFOFPMLG just in case.
Upd
Just got the windows activation error code 0x80070426
Upd
"Troubleshooter doesn't work with this version of Windows" error message when I'm trying to troubleshoot blue screen
Upd.
Message "verify that you have sufficient privileges to start system services"
And another message:
The volume shadow copy service used by system restore is not working.
0x81000202
SFC also doesn't work.
Well, as I understand, I just have no other option, than reinstall Windows