Your Windows registry is an integral part of your personal computer. In truth, if your computer ever freezes, crashes, shows errors, doesn’t load applications, has a “blue screen” error, or even runs slower than before - there’s an excellent chance that you need your system registry cleaned. Sadly , fixing your registry could be a hard job, which should really only be undertaken by a professional. Just one little mistake could cause an abiding, irreparable mistake on your PC which will force a complete reformat. Most folk do not don’t have the knowledge to do that manually, either. The sole option is to live with a super-slow PC, until you either buy a new one ( one day ) or have to fully reformat your PC (or get the best registry cleaner and restore your computer performance), which can take days of frustrating work. You will actually have to take your PC back to the store to get things working quickly and smoothly again.