What are some command prompts that can help get my computer up and running. It wont run correctly and is filled with virus. When i ran avast, it helped until the virus scan froze. my registry is corrupted. Ar there any manual ways to help fix my pC without downloading programs. I can TRY to dwnload some things on to my jump drive, but it can not be installation programs. My downloads wont work, nor can i access task manger. i have a program called ODBC but i do not know how to work it. i can access the net. I cant update on microsoft. i got blocked out, some sort of way.