In the beginning when using my first laptop many years ago I would sometimes make a mess of things, or some software would, and the only way to solve it was reformatting for me, if System Restore did not solve it. It would take me 2-3 days of hard work to get my laptop back in shape as I had it before the mess occurred.
Then I discovered Backups. It saved me from having to do all that work; in 25 minutes I would have my machine back the way I like it utilizing the latest backup I had made before the difficulty began, including all my settings.
On Windows xp I used Acronis, then on Windows 7 a backup system was already included by Microsoft, and all I had to do was buy an external drive to save the backups on. Now with Windows 8.1 Microsoft removed that internal backup software, saying too few people were using it. So it looks like the majority op pc users don't make backups...
Not having Microsoft's backup program on my Windows 8.1, I looked for an alternative. And found a marvelous free Backup program named AOMEI Backupper.
On YouTube there are many enthusiastic reviews and tutorials, but I like this one best:
"AOMEI Data Backuper Software Tutorial Freeware"