Win Maximizer

Well first off, I was having problems with my computers speed, and registries; so I purchased via online this program called Maximizer that was "Suppose" to clean up my drive and increase my computer speed. Well that was all good because they delivered on their promise; however, I was continuing with the problem of registry and other problems that slowed my computer down. So I looked into my drives; and purchased Driver-Doc, which by the way came with an alternate program for free called "Winsweep" that just so happens to be owned by the same company of the Winmaximizer, hence the name "Winsweep". Well I noticed that everytime I would clean up my drive with these so-called miracle workers, the problems would slowly arise as I was on the computer. So I did a test; I used the winsweep, and the winmaximizer to clean my computer before completely shutting it down. Well, the following day when I booted up my computer I had 29 registry problems(unknown info. In the scan) additional other problems to which should have been impossible if my computer was shut down and inactive. So I e-mailed them to inquire about this phenomena, and to no avail, no answer. So I hope that someone can come up with a solution to this particular; because I'm tired of having to scan my computer before and after I use it. "It's senseless" Not withstanding that when I scan my computer to clean it takes away info. That I didn't want removed; like passwords which my cookies should have retained, as well as shortcuts that are in my startup. It's crazy but I have to deal with it, because this company hasn't returned my e-mail