I really need help I am an IT technician and I have a computer that looked like it might have some viruses so I set Avast to do a boot time scan and restarted. I left it for a while and came back to see that it had stopped because it had found a virus so I deleted it and it resumed scanning I came back again later and it had found another one but when I tried to delete it, it just sat there and the only way I could get it to keep going was to just tell it to ignore it when it suddenly crashed and restarted. It then turned back on when I pushed the power button and it started a startup repair and it's still going. Been about an hour and a half now. Any help is greatly appreciated.