Sometimes, you do run into annoying lag episodes with your Windows XP and one way to fix it up is by using a registry cleaner.  Specifically, you’ll need to get a registry cleaner windows xp because that’s what will give the right clean. All registry problems are basically the same but different operating system versions require a different approach in maintaining their registry, so you don’t want to get a vista registry cleaner for your xp. It’s also important to make it a habit to run a cleaning every now and then before errors and obsolete files start building up and messing up your PC again.