At the start I'd like to sorry for all the language mistakes.
Today I've got some problems running my computer. At the begging, Windows didn't want to update - "failed to update". I am running old version right now. Next, I couldn't run my web browser, Mozilla Firefox, because there was an error "File KERNEL32.dll is missing". I resinstalled the browser, and it's working now. Finnaly, a horrible thing happened. A game, Mad Max, crushed 2 times, because of some errors (it never happened before). Unfortunatelly, I don't remember why (the error messages), but I can remember, that it was related to virus.
Now, why am I writing about it here? Because it affects Windows. Badly - windows update, black screens while running such things as Windows searching. I can't search for the Virus with Avast, because I have pretty slow computer, and after 30 minutes of scanning, there was no progress, fast scanning doesn't detect anything (Fast scanning finished in 1 minute, and I was pretty suprised with that, because it's much faster than compared to other users, and slow scanning is much slower than compared to other users). I can't run Windows Defender as well. I ran CMD scanning (command sfc /scannow), and there's attachment.
It has a plenty of DIRSD owner warnings - I read about them, and they don't appear to be serious errors, but from the other side I read about KERNEL32.dll (the Mozilla running error), and they are probably related.
What is going on? What should I do?