How can I format (without disk manager or install disk)?

Question

Awhile ago (last December) I got a virus on my computer. I called dell and they walked me through formatting it. (not through the use of the install disk or disk manager)

Well, I got a virus again, I don't have my warranty anymore, and I tried disk manager, but it isn't working. What do I do?

All I remember is that I was able to do it while still in start up ( by hitting either f8 or f11, I don't quite remember)

Answer 1

While the computer is booting, watch for options during the startup (usually along the bottom or near the bottom of the screen). There should be an option called "Recovery mode" if there is one, use that option key and it should take you to what you are remembering.