Tech keeps his opinion…
Just start to do intensive disk usage (defragmentation, backup, archive scanning, etc.) and you’ll see.
Of course, the usage of a document (Word) or a sheet (Excel) won’t be noticed by GoBack.
I have terrible experiences with GoBack: sometimes it is marvelous, works perfectly, like Alanrf said It is also a fantastic way to check out new software and, if you do not like it, ensure that it is completely and utterly removed from your system.
Sometimes, there is no rescue point to GoBack…