The Windows Registry is a hierarchical database used to store all the info that the OS needs to function. The registry is therefore the “manager” of the operating system. It contains all the data relating to the computer’s configuration, users and their configuration, the hardware and the programs installed. This database is permanently being updated whilst the PC is being used and when software is installed/uninstalled and hardware added/deleted.

When a PC is fresh the registry is unfragmented and error free which means that the PC runs without problems. However, as time goes by the registry gets larger as it gets filled with redundant, incomplete and possibly corrupt data. Whilst day to day activities will have an effect on the registry, it is adding and particularly deleting software that can cause problems. Installing software may overwrite data already present and affect another program whilst an uninstall may remove an entry required by another program (especially if you don’t take care with any warnings). Some programs do not uninstall totally leaving bits to cause issues for the PC. Registry issues can also result from part installations due to an terminated installation. The impact is missing or corrupt files which cause problems.

In addition there is also a possibility that installing free programs found online may purposely damage the registry. The impact of all this can be the system:

• taking a long time to startup
• working slowly
• crashing
• displaying unusual error messages
• showing unexpected pop-ups
• showing ‘Unable to load’ dll errors.

A computer professional might be able to edit the registry manually but unless you are totally sure that you will not do any damage you should not attempt this. Making the wrong changes could make your computer unstable or even unusable. For most people the obvious option is a software package designed for this problem.

A Registry Repair Software should tidy up the registry and significantly improve the performance of your system, however, it is essential to backup the registry prior to running a registry fix. This is necessary because Fix Registry Errors carries a slight risk and it is always possible that something will be removed that is really required by another program or windows itself. If this happens it will be necessary to restore the backed-up copy of the registry.

To reduce the possibility of issues use a product from a well known vendor. These will let you evaluate the program free and use it to run a scan of your registry. You may be able to fix some of the errors reported with the free version but to clean the registry properly you will be required to register.

Provided you take care about taking backups, registry repair software- along with anti-virus software, a firewall and anti-spyware software will help you to keep your PC working efficiently.

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