How long does the Windows Repair take? I am running Windows 7 64 bit on an Acer Aspire desktop. 8 gb ram, 2 tb hard drive, i5 processor. I started the repair tool this mornng choosing only 8 or 9 tjings needing repaie ans it is still going. Its been stuck on 4-Register System Files for 13 HOURS! Is this normal? If not, what do i do? Thanks for this software . You do good things. And I am emailing through my phone because of this. HELP!