Hi all i've a problem. A few months ago, i checked the status of my OS and i find a strange thing: Windows 7 Service Pack 3 installed (Windows 7 Ultimate 64-bit (6.1, Build 7600) Service Pack 3 (7600.win7_gdr.100618-1621)) . How is possible? The real problem is that i can't upgrade my OS in 7601 with SP1 'cause it says me: "A version of Service pack newest is installed in your system.". Obviously not true. I controlled in update installed if there is mysterious SP3 and there isn't. What can i do? My Win7's cr@cked, but i don't think it's for this reason. Looking around i found a few cases like mine and nothing solution. I hope you can help me Thanks anyway guys and sorry for my english I've also tried to disable and rienable the cr@ck but no results.