I have a problem syncing folders to backup drive,have a computer with three drives.Two drives have OS and one is a backup drive. The drives are control with a switch so only one OS is powered at a time. Guess I'm old school,but if I lost a drive I could switch to other drive and have my computer running instantly. Problem is I syn a folder from OS1 to the backup drive and all looks well. I check the backup drive and it shows the folder has a successful syn. If I shut down computer and boot to OS2 and look at the backup drive it shows the folder was not syn to new update. It like the OS1 did not make a change to the backup drive? Not sure why the other OS does not pick up changes. Any suggestions? If either OS makes a change to a folder on backup drive shouldn't it show up.