Please be aware of the fact that a very aggressive trojan horse currently is locking (encrypting) personal computers and web servers.
Make sure that you have a backup. Best unlock your USB station after making a backup. You should even consider to unlink your cloud backup!
When still working most time under Windows, I was used to Cobain Backup (that is not developed any more, what a pity).
Indeed backup (and all related stuff) is one of the essential points for any person working with a computer (if not delegated to an admin).