You want to help me or not, I will share the progress I make with this error. First, I found a windows update diagnostical tool. That tool saidto me an erro code (0x80070005). I've tryed to prevent that error (virus&malware scan...I have an administrator acc, btw), but nothing helped. Recently, I"ve runned a malware scan, and from that, whenever I try to run that repair tool (in normal mode. In safe mode, it runs smoothly) gives me a blue screen, with the error STOP: 0x0000002. So, for now on, I gave up.