My OS has developed a problem of links internal to email and sometimes other links do not work. IE8 which is part of Win 7 seems to be the problem. I have gone round and round on other forums but noone is able to fix the problem so I am left with re-installing the OS. Before you suggest I should try Restore point... I have but I get an incomplete Restore and error message so that option is out. Before you suggest I should have a backup, I do. From 12/29 just before the problem started but it turns out the backup file is corrupt. What i want to do is repair the OS. My disks from MS are for the "upgrade" so the first thing I am asked to do is format the HD which of course means I loose every program on the 325GB drive. Is there no way to repair Windows 7 64 bit OS other than formatting the HD and starting over? I had similar problem in 2009 as I discovered a vulnerability in IE8 which allowed an older Win9x program to corrupt the OS. I ended up having to do a complete reinstall of everything and I don't want to spend 3 or 4 days doing this again.