Hi,
I had the same problem and I just found the answer.
- Go to Control Panel
- Go to Programs and Features
- Find a program called Bonjour, right clic on it, then clic Repair.
- Find a program called Apple Software Update, right clic on it, then clic Repair.
- Expend Windows Start Menu, look for Apple Software Update and launch it.
Now you can see available updates for Apple softwares.
- First, only update Bonjour if available.
- Then only update Apple Software Update if available.
If one of those return an error, relaunch Apple Software Update. On the top menu, clic Tools, then clic Download only.
Once downloaded, a window will open to show you the files. Right clic one the file, then clic Install. Bonjour First, then Apple Software Update.
Bonjour and Apple Software Update are now repaired and up to date.
- Expend Windows Start Menu, look for Apple Software Update and launch it.
- Look for updates.
- Install iTunes update. (in my case, that worked)
- If an error occurs, try doing the same as above with Download only for the iTunes update.
Hope this help