My laptop goes thru boot up and welcome screen, then goes black. Last good is the same and safe mode goes thru listings then stops. So I quess the mbr is corrupted, I have the original recovery disk but would like to try to rescue without complete wipe out. I have read to use fixmbr, I don't have the startup disk, can I make one or down load one to attempt the fix or am just stuck with the redo? I tried my norton which just told me that there was no virus.