Killer Download: Speed up your system by cleaning your registry

As a frequent downloader of new software, I test and review a ton of programs on my PC at work. But after installing and uninstalling so many programs, it doesn't take long for my registry to become a complete mess, which causes errors, sluggishness, and sometimes even crashes. The problem is that not all programs uninstall as easily as they install and often registry entries are left to stagnate in your system and may eventually cause problems.

To keep my registry lean and mean, I run a quick scan of registry entries using software designed to root out the garbage left behind by uninstalled programs. These apps check my registry for rogue entries so I can decide whether I want to delete them. Some programs also give me a description of what specific registry entries were once used for, thereby allowing me to decide whether I still need them.

A word of warning: Be extremely careful when deleting files from your registry. Some entries have strange names that you won't be able to identify, but might be necessary to run your favorite program or even your system software. A good rule of thumb might be that you only delete entries that you are sure are related to programs you no longer use. With that said, here are my three favorites for regular registry maintenance.