Hi Ico,
Another Bust, nothing that can put me on the right track, AAAAAAAArgh.

Without the detail, we cant fix it

All i can do is provide you with
W7 SP1 X64 Ultimate

you can use it to either perform a repair install, or a clean install

https://software-download.microsoft....26aae03c470b7f

Link is only valid for 24hrs.

if you can get to
c >> windows >> logs >>> cbs >> SURT
(it may have run but not reported)
zip and post it, IF you can/want to.


Roy

just a thought, being hit by malware/virus sometimes changes/leaves system permissions problems