I am using Windows 10, and I keep getting a message saying to "Reconnect your file history drive..." What is this and do I care?
You must have set up the built in Win 10 backup and used an external drive. It is now trying to find the drive and can't. So go to Windows button, Settings, Update & Security, Backup, Go to More Options, scroll to Backup to different drive and click Stop using drive. You might want to set up the backup to a new drive. This is a good time to remind you of the built in backup, files and image.