Locking down individual files is great, but a blanket encryption will prevent anyone from getting their paws on your files.
I'm guilty of ignoring the Windows prompts reminding me to create a backup of my PC. I use Dropbox to create backups of many ...
You'll need a secondary drive to back up your main drive. Windows 10 and Windows 11 prefer to back up files to OneDrive, Microsoft's online backup and synchronization offering (more on that below).