Win 7 has a very obnoxious “I know better than you” window that pops up every 15 mins. I eventually stops but the message is:
Do you want to scan and fix My Passport (X:)?
There might be a problem with some files on this device or disc. This can happen if you remove the device or disc before all files have been written to it.
Scan and fix (recommended)
This will prevent future problems when copying files to this device or disc.
Continue without scanning.
I let it scan the contents the first time the screen appeared. I haven’t let it try again. Obviously there’s something MS doesn’t like.