With other antivirus programs I have had, I found that I could not restore my computer to an earlier time unless I disabled them. With Bitdefender Antivirus Plus 2016, I could not restore my computer. An error message said that it could not access a file, and to disable my Antivirus. So I turned off the 'On Access'. Bitdefender asked how long to disable, and I chose until the computer restarts. Well, System Restore ran, and rebooted. I still got the same error message, even though Bitdefender was supposedly disabled. Do I need to actually uninstall Bitdefender, run System Restore, and then reinstall Bitdefender? I hope not. That seems kind of ridiculous, Isn't there a way to disable it so it will not interfere with System Restore?