Sure, just go ahead and use it.
I suggest you get in the habit of doing both of these things:
1) Setup an automated backup using a tool like Acronis True Image. I have it setup as:
- weekly (automatic)
- incremental (main chain + 4x incremental)
- deletes after one chain to save space
- 2nd highest compression level
- *I make an initial backup that's not automated and just save it to NOT DELETE as issues can easily creep in you aren't aware of. If I need to I'll backup any critical data then rollback to that saved backup.
**Acronis True Image is slightly confusing at first, especially finding some of the settings such as compression level. Not sure how they've managed to make it more confusing than it was years ago but they did. Once it's setup though you just leave it and periodically check the backup folder and look at the last backup date to see if it's updating.
2) RESTORE POINTS:
Turn on System Restore for the C-drive. If you make any big changes, or have concerns about any changes like installing certain drivers or software then set a restore point.
Windows will also set Restore Points at more critical updates.
Restoring an older point saved me a few times.