I have to say here I don't use system restore as on any PC I've ever sorted the next time it works in a critical situation will be the first - Trying Booster was an experiment that's all, nothing more. I just wanted to see what the results of using this (a driver updater on 10) program on a very stable & fast PC were. I installed it twice from a OK system, the results were the same it messed the SATA driver up & installed an incorrect display driver, thereby causing the Reflect Image PE to fail, I assume other programs were affected but that's conjecture.
The restore in the program did not remedy the situation - I don't need solutions, I was running it as a person who may have limited computer skills as these programs are marketed - If I had been such a person the situation could have been difficult? I had hoped the PC would have ran better not much worse I have to say, & my advice is if things are OK & you are not a gamer leave things alone.
That was my experience, if things had improved I would have said - I'm not an expert but have 25 years experience of using / building / maintaining PC's. For me it messed just this PC up - if this had been once of my friends I would have gotten a phone call to go & put it right. Few people I know can boot into safe mode, my point of view as a final comment is: I installed the program twice & had issues so there can be risks, beware?