The system worked well a while ago ... I restored a copy of it now. I was make it with True Image.
Everything is ok again.
Some requests of errors, can not spend more ... obviously.
The fact is that some Windows components were seriously damaged.
I uninstalled, cleared the reg...
I tried to eliminate pests with various tools ... nothing.
I install all again ... several times.
I'm tired! I restore my partition C :.
Thank you all for support.