A good registry cleaner can help fix several common computer ailments. If you're experiencing problems such as frequent error message, slow bootups, crashes and freezes, and overall sluggish performance, you probably have errors in the Windows registry.

So can you fix the registry yourselfI wouldn't recommend it in most cases because playing with regedit (the editing program that comes with Windows) is not the advice I would give. Unless you are familiar with HKEYs, Hives, and Values, you are better off leaving the registry alone. Making changes can result in a computer that doesn't even load Windows anymore, let alone run smoothly

Can a registry cleaner help you out?

In most cases, a good registry repair utility can make marked improvements in the performance of your PC. It can clean up broken, orphaned, and corrupt files and entries within minutes. To find all the errors and do the things the cleaner does could take you days if you would do it yourself, even if you knew exactly what you were looking for. Some of this programs can find up to 800 errors in the registry. Even advanced computer technicians would never be able to fix, let alone find, 800 errors in the registry.

A good registry repair program should have this:

Allow you to backup the registry automatically

undo changes you've made

ignore entries you don't want to removehelp you manage startup processes

Also, a good way to know if a registry cleaner is worth its salt is whether it is consistent with its scan results