There simply isn't any 'tool' that will fix every PC problem no matter what the problem is. I would'n even bother looking for one. Best you can do is, find tools for specific problems

With Win7-8-10 your best protection always is to make a system restore point when your PC is running well. I do it once a week takes about 3 minutes and when you have trouble just go to
the latest working restore point and restore your PC. Works 99% of the time. If you have an external drive you can go one better and create system image. Look up how to do.