I updated Windows to 8.1 and I was using Chrome for my browser chrome updated to Chromium Avast came with it. It installed on my C drive. I'm getting Rumage pop ups I paid once for repairs. Windows informed me that to start up in safe mode To detect issues. I did a full scan Windows fixed it. As soon I it booted up Rumage kept telling everything was crashing, Windows help me figure out it was Avast causing problems. I tried to delete it .Windows said I couldn't it would delete everything on Windows. What can I do?