I have Windows 7, iTunes (10.7) and an iPhone 4s.

I have Windows 7, iTunes (10.7) and an iPhone 4s. Everything is up-to-date but recently I’ve been getting this message when I try to do a backup of the iPhone:

iTunes could not back up this iPhone because the backup was corrupt or not compatible with the iPhone.

I uninstalled the iTunes but even with the new version, I was still getting the same message.

Can anyone help??