Here we are discussing a very strange yet important use of registry cleaner. Every file is saved with its file extension. This extension will follow a period such as .doc, which means that it is a MS word document. Or an .xls extension that means it is meant to open in Microsoft Excel. Microsoft Windows uses these extensions to associate programs with the file and automatically launches the program when the file is selected for viewing. Here is where the technicality of association can go wrong. There are two scenarios. One when the program is not loaded to run the file and the other when the extension or association is wrong. All this information is entered in the registry of the system and if the extension or association is wrong or the program does not exist the data or file is redundant and will not load. This will remain in the registry, as it is not automatically deleted. What you need is a registry cleaner to do the job for you.

Registry cleaners are available all over the Internet. A search in any search engine with the appropriate keywords such as windows registry cleaner or free registry cleaner will bring you to a, usually free, download. This is software that takes a few seconds, maybe a couple of minutes to download on your system. It is easier to run. There are two stages to running the program. One stage, the first, is to scan your registry for redundant entries such as bad associations or extensions. This process may take two or three minutes. Then the second stage is to clean the registry with the free registry cleaner software. This takes a split second. Because the registry cleaner has already scanned the system and selected the files that need to be deleted from the system.

There are number of free registry cleaners that can be downloaded for free. Some of the popular ones are free windows xp registry cleaner, registry tweaknow cleaner and abexo registry cleaner. All these registry cleaners can remove redundant associations such as files that are inoperable because the associated programs are not loaded. If such a file exists, the system will spend a lot of time looking for the associated program in the background and slow the system down. In the end the association program will display that the file cannot be opened because the associated program could not be found.

It is always advisable to run registry cleaner software on your system to maintain the efficiency of the system and have a tension free PC.