Yesterday I installed iTunes on my Windows 7 (x64) machine. It ran for a time just fine but today when I went to launch it I got the following...
"This operation has been cancelled due to restrictions in effect on this computer. Please contact your system administrator"
Well, I am my system administrator so that didn't help. I know there are no policies in place to prevent it so that "restriction" wasn't it.
Checking Google and the like all seem to indicate this pops up with IE and is usually associated with a virus or malware. I am 98% sure that isn't the case here as I have scanned, probed and otherwise diagnosed my machine and it came back clean. (In case it matters I am running Kaspersky AV)
I have uninstalled, cleaned, rebooted and reinstalled and the problem still exists. I have also checked the "Image File Execution Options" in the registry and it looks clean.