So I get my brand-new, activated win7 installed, and after getting the basic drivers installed (chipset, video, sound, and mobo utilities), I dialed back UAC to next-to-last level (paranoia?), then resassign the library folders. So far, all is well, it's looking good. Then the fun begins. I have the OS on it's own drive, and all the data on it's own as well. I dive into a folder where I had downloaded my programs to reinstall, go to install Firefox, and the UAC nag pops up... And hangs. HARD. EVERYTHING stops responding. And nothing can work 'til I go to task manager and kill the UAC box. I finally rolled back to just after the video install, and pushed the UAC to "off", and tried again... and got some dialog box asking for either admin/password or my user name/pe, which was just a fail, because it would accept my login/pass, but do nothing afterward. And that was 4am, and I was due into work at 10, so I gave up. And now I ask thee, fine denizens of MDL, ye persons of great intelligence and wit: WTF is up wit' dat?? And WTF did I FUBAR?? TIA, folks...
Did you do a reboot after disabling UAC, as you need to do that, you probably did, just thought I would mention it.
The second time, when I slid the slider to the bottom: no. The first time, when I moved it from "setting 3" to "setting 2": no. And in both instances, windows did NOT ask for reboot (&, iirc, it never has)
seems to like you have a corruption somewhere. open cmd (right click run as admin) type SFC /scannow PS: Several versions of SP1 x64 were corrupt... so make sure you obtained from a PROPER Site.