I resently installed SP2 for Windows Xp and i had a problem with my computer a couple days later and so I did a system restore. Without thinking I set my computer back 5 days not thinking that I installed SP2. When the computer restarted after doing the system restore it says windows was not sure which startup i used last and i chose start windows normal and it flashed a blue screen then restarted and then went back to the windows was not sure which startup last used. Ive tried all the startups and I get the same error. Please help.