Use Storix software - the free desktop edition one (it's a graphical backup agent)
-- (You also get free support!)
You can do bare metal restore, etc, indv. directories. (You must be a home user... not a biz....) If so, your free. Just select Desktop license.
The hard drive you'll be backing your PC up MUST be dedicated to Storix.
Remove the line from /etc/fstab and un-mount . That's how storix recongizes drive, and then follow docs or call them or mail them.