If you use Windows on your computer the state of the registry can impact how efficiently your computer works. Registry cleaners help to keep your registry in good shape. They check for and remove obsolete and corrupt entries that cause the computer to slow down.
A database, that Windows calls its registry, tracks all the changes made to computer settings and programs. It uses this registry when starting up and when you access programs. The more changes that are made, the larger the database becomes. And, the larger the database is, the longer it takes for Windows to find what it is looking for.
When programs are deleted all of the associated registry files should be deleted too. But, sometimes files are left behind. Because the program no longer exists on the computer these orphan files have no use. They simply take up room in the registry and slow the computer down.
Malware and spyware use the registry too. It is from here they launch attacks on a computer. You can pick up these malicious programs when surfing the net without even realizing it. And, they won’t show up in your add or remove programs option either.
There is no good reason not to keep your registry clean. Obsolete and malicious entries do nothing constructive and reduce the speed at which a computer operates.
A computer program that scans the computer registry and presents useless files for deletion is called a cleaner. They are easy to use. When you run them they check for files that have no apparent association with any of the legitimate programs on the computer. The program then asks whether you would like to delete these registry entries.
Checking the registry can be done manually but this requires a level of knowledge that is greater than most general users possess. It also takes much longer to check each entry line by line. Most people with the knowledge to manually check entries will not take this path, unless performance is still unacceptable after a cleaner has done its job.
Not cleaning obsolete files from the database can slow down your computer to the point where it ceases to function and hangs or crashes. Viruses and other malicious entries can cause it to cease operating altogether. When this happens most users will need to pay a technician to recover the system.
Using registry cleaners is much cheaper than paying an expert to fix a computer when it crashes. As with most things prevention is better than cure.