To clean out the registry on a regular basis is the best way in order to have a PC run correctly. But for a lot of people, they even have no idea what the registry is. Let alone that they should clean it regularly.The Windows registry is a complicated filing system. Simply, we can say programs and hardware store settings and preference files in the registry. Those settings and files can tell Windows the right way to run the applications. Your computer would lose all customization each time you turned it off without these files.The only way is to use the best registry cleaner to reilably and safely clean the registry on your PC. There’s really no other way to do it.  The investment is well worth it although a good registry easy may cost a few bucks. I really like RegEasy and always recommend that program to anyone who asks.