well, my advice is there is only one I would go with, but at the same time I no very little about regedit without looking up what it wants to remove every time If damage is done there is one thing everyone who uses them or advises them should tell you
back up the files from the program before you do so As I have told others if you are unsure on how to backup and restore the files using that editer then the programs are not for you I stated this in many other fourms but yet again people think check them all and make them leave fixes the problem. Most of the time you just created a bigger problem. In reply to this I would say do not use it and use other things to speed up your system such as diskdefrag and windows cleanup tool built into windows
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A paycheck pays the bills, but helping others is a respectful thing to do and it does not get old. If you know everything, then you know nothing at all. No one knows everything once they think they "do" they will learn nothing. Nothing is dumb to ask if one does not ask or look around one may never know. The biggest problem with education is textbooks, they have one point of view, people you learn m don't write a standerd text book. They write a book based on life and what they have seen , everyone has their own book. A great leader will be ok with not knowing everything and learn by being open minded. A simple thank you goes a long way.