Back-up, Back-up, Back-up!
It will cost you time and effort re-create it, and that costs money or at least personal grief and tears; sometimes it can't even be re-created, e.g., if it is the results of some experiments. Since it is an investment, you should protect it and take steps to avoid losing it.
With today's Malware and Randsomware attacks simply by having a backup copy, you can then erase the drive, reinstall the operating system, restore the backup copy, and then start fresh. So remember: no backup, no protection from ransomware.
We highly recommend you have an isolated back up that is not connected to your network , mapped and shared drives.
WE CAN OFFER YOU SAFE AND RELIABLE BACK-UP SOLUTIONS!