Over time, when using your computer the registry expands as you install or uninstall products. When you remove products you are not sure if its entire registry entries are deleted when it does the entire registry is not totally deleted but it is only left to be empty. And when this happens for a long period of time and no maintenance is made the registry can be fragmented because of the empty registries.

Registry cleaners have become popular and are one of the needed utility tools in our computer. Registry cleaners do not simply clean out the registry but it also delete unnecessary files such as cookies, temporary internet files and even invalid registry entries. There are a lot of registry cleaners that are either available for free or for purchase. One of the highest rated and reviewed registry cleaner is Pc Tools registry cleaner. It has been stated in some reviews that it is able to repair broken registry links. The registry errors can cause the computer to slow down because it still has to check an empty registry which is not supposed to.

This type of cleaner first asks you to backup the registry so in case something goes wrong like accidentally deleting a registry entry then you can restore your original registry. Then it will can the entire registry and this might take several minutes depending on how many software applications was installed and removed from the computer. Once the scan is finished it will display the scan results in a list. There are comments for each registry scanned it can either tell you if the found registry is empty, invalid or valid. The option to delete registry entries is the decision of the user. Though, when you are still using the trial version of the Pc Tools registry cleaner you are only allowed to delete 20 entries. When you want to delete more than 2 registry entries then you have to register or purchase the Pc Tool registry cleaner.

You can also change the settings on how the Pc Tool registry cleaner will deal with the registry entries it has found. This cleaner can delete the registry entries automatically after scanning. And before it repairs the registry it will automatically back up the registry. This cleaner also checks if there is a newer update of the software. If a newer version exists it will automatically update itself. If you are not sure you want to delete a registry entry an "ignore" button is available or you can right-click on an entry then you can choose to add it on the ignore list. Aside from creating registry backup the this registry cleaner is able to create a restore point which works like the Windows System Restore utility.

If you are dealing with virus problems there are a lot of free antivirus protection that can do the trick. But if you are dealing with the registry then you should not just pick out a free registry cleaner online then test if it can solve the problem, one tiny mistake in deleting a registry entry can cause the system to crash. So make sure that you get the best registry cleaner available such as the Pc Tools registry cleaner.