With so many registry cleaners around, it's no wonder that a lot of people get confused about which one is the best for Windows XP. This is made worse, thanks to the fact that if you use a poor quality registry cleaner on the OS, you could make it run extremely slowly and with permanent problems.

Registry cleaners are an important tool to help keep Windows XP running smoothly, because they work to clean out the registry database. The registry database is a vital part of the Windows XP system, as it stores all the settings and options for your PC. Information such as which Internet bookmarks you have, and even your screen resolution are kept in this database, making it one of the most crucial parts of the Windows system. However, the registry is also one of the biggest causes of problems for Windows, thanks to a fatal design flaw.

The problem with the registry database is that since it hols 100,000's of important files, Windows XP is constantly getting confused about which ones it has open and which ones it needs to save. This means that whenever you use your computer, the system is constantly getting confused and saving many registry files wrongly, making them corrupt and unable to be processed. This makes the files unable to be processed properly, causing all sorts of errors and the slowing-down of your PC.

This means that whenever you use your computer, it's actually running slower and with more errors, with no hope of speeding up unless you can go into the registry database and fix all the problems that are in there. The way to do this is with a registry cleaner, but because XP is so old (was released in 2002), many registry cleaners are unable to find & fix the most problems inside it, leading them to make your computer a lot more damaged and corrupt. This can cause your PC to be unable to boot up, amongst other problems.

The best XP registry cleaner should be able to fix all the registry errors in your system, and then fix all the problems that they find. They do this by scanning all the registry files on your system and then fixing-up the broken ones. Having used many different registry cleaners, we've found that a handful of professionally designed ones work well with XP. However, there was one which worked very well - called "RegAce". This was able to clean out the most registry errors and fix them safely, with the help of a backup system.