I heard some advertisement the other day for some website that would fix my computer for me. The ad actually generated some calls to my phone and emails to my in-box, and I thought I would check in to some of these claims and blog about it. (I can't seem to find the URL for the exact company at the writing of this article, but I will try to add it later.)
(I won't get into the advertisement using Apple computers on the screen, yet having a disclaimer that it only works for Windows PCs.)
One of the claims was that this repair system can fix "registry errors." I then did a search to find out what these "registry errors" are that need fixing. One site says:
"Typically, real registry problems come on slowly and steadily. They manifest themselves in continual slowdowns. This happens because the registry becomes corrupted over time, even if the computer is not used rigorously. Corruption is natural because anything that changes in your computer, such as deleting a text file or jpg, actually corrupts the registry. " (http://www.repairslowcomputer.com/registry_problems.htm, March 15, 2009)
It is this quote that I focus upon, but the rest of the page is very comical.
This entire quote is completely fraudulent.
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"real registry problems come on slow and steady."
Only if the user mis-configures their computer "slow and steady."
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"They manifest themselves in continual slowdowns."
The registry doesn't slow down the computer. The software the user installed slows down the computer.
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"This happens because the registry becomes corrupted over time, even if the computer is not used rigorously"
The registry never becomes corrupted, if it stores what you tell it to store. Microsoft even came up with a way that Windows backs up and automatically uses the registry hive if they detect it is corrupted, but that is only due to hardware failure such as disk problems. Registry corruption cannot be fixed with "registry cleaners, anyway - what the article is supposed to be about. Additionally, if your registry is completely corrupt, you won't be able to get to the website to fix the registry.
Most of all, I like the part about "such as deleting a text file or jpg, actually corrupts the registry." They don't correlate whatsoever. It may as well have said "Don't kick your car or your house may catch immediately on fire."
What is the truth?
The registry is a storage place for configuration information. As such, it is responsible for identifying what the computer runs. For example, you can have Internet Explorer as your main internet browser, but you may want to switch that to FireFox. The registry allows both to be installed, yet one is your default. You may even want Windows to look like an Apple. Just a quick change, some software that looks like an Apple, and it will do exactly that.
The "error" that the sites are talking about is the problem of mis-configuration, not "registry error." If you install fifty pieces of software that all start up when your computer starts, the computer will take at least 50 times longer than it normally did before those installations. If, however, you uninstall them - the computer will return to being fast again, unless the software doesn't uninstall properly. Again, this is a software problem, and nothing to do with "the registry."
Why do they say "registry error" then?
I think they report this because nobody is going to think they are an expert if they don't have some sort of fear attached with their message. Saying "you just need to get rid of some software you don't use anymore" seems easy. Saying that you probably have "registry corruption" makes people think about back-alley bribes or dark crimes, and that isn't something they need in their computer. According to our computer expert from above, the user corrupts the registry with everything they do! Since the user doesn't know - they artificially place the "registry error" promoter on a pedestal.
There is no tool supplied within a normal copy of Windows that will cause real "registry errors" when you run it. You can run "regedit" and delete your registry - but that isn't a registry error, it is essentially removing Windows' ability to know what to run, what your computer looks like, etc. (I would call that "user error")
What do we recommend?
First, ensure that you know what you are doing. If you don't understand software - learn. If you don't understand Windows and how it works, learn. There are consequences to not having virus software up to date, or Windows Updates regularly installed.
Registry cleaners will not significantly effect your computers speed or reliability and won't save you from problems that you induce. They will make your computer run slightly faster by cleaning up artifacts of the install/uninstall processes - but won't give you even 10% faster operation without effecting the software that you told it to run.
Most importantly, always bring your computer to a qualified repair person that can fix the problem. When I say qualified - someone that won't just run one of these tools, charge you five hundred dollars for it and then give it back. Check your invoice. If they say generics such as "repaired registry errors" and can't tell you what - get your money back.