How do you repair Apple Software Update in Windows 7?

When I open iTunes it says a new version (10.6.3) is available, and I click on "download" but nothing happens.

Repairing ASU tends to have no impact on that one. (The issue seems to be at the Apple servers end of things.)

I'd try updating your iTunes using an iTunesSetup.exe (or iTunes64Setup.exe) installer file downloaded from the Apple website:

http://www.apple.com/itunes/download/

Hold on, a fix should be coming to you. After a month of waiting & having same problem as you, today when I turned on my computer an Apple Software Update appeared right on my desktop telling me to download the new update. I did & it downloaded just fine. I assume it should be coming to your computer soon also. Good Luck.

After a month of waiting & having same problem as you, today when I turned on my computer an Apple Software Update appeared right on my desktop telling me to download the new update. I did & it downloaded just fine. I assume it should be coming to your computer soon also.

Yeah ... it's a bit "patchy" though, Sassy. It can come right for some people and yet not for others ... and there's been a few reports in some of the bigger threads of it coming right for some folks and then going silly again (for the same folks).

A good rule of thumb with this one is that if you do get a "window" where ASU seems to work fine, get as many updates done as you can (just in case the window closes again).