I remove everything and I have 12GB free space, but after some hours I have again just 2,5GB free space and I did nothing
So you booted the system and did nothing? That is something I don't believe. You didn't used any application in those hours? If so, then why booting the system if you don't do anything with it?
because when aswmbr is scaning in some time Blue Screen is showing
What is the [b]EXACT[/b] error on the bsod?