See also: Windows DLL Error, Windows Runtime Error

Microsoft Windows, while a fantastic operating system that has practically defined the way modern computing is conducted, is also rife with errors and ailments.  After all, given its sheer complexity, how could one expect it to be perfect?  Windows registry errors, however, are the most deceptive of the error-causing lot.  Fittingly, they are also the most frustrating to diagnose.

However, not all is lost, as once you know the telltale signs of a Windows registry error it is a rather simple process to diagnose, find, and repair.

What Is a Windows Registry Error?

The Windows registry is a database that stores all sorts of important information about your computer.  It manages all of the settings that are used and referenced by all of the software, hardware, and peripherals connected to your computer.  It also “remembers” all of your preferences and individual program settings.

As you can imagine, the Windows registry is not something you want to have errors in (regular scans using a program such as Registry Easy or Registry Fix will go a long way in preventing registry errors).  However, it is almost guaranteed that you will encounter a registry error or three if you use your computer in any significant way at all.

The telltale sign that the error you are experiencing is the infamous pop-up window that informs you of the error (but in actuality provides little to no information about the error).

Typical Causes of a Windows Registry Error

There are a million reasons why your car could break down, just as there are a million things that may cause registry errors.  Anything from improperly uninstalling a program to installing programs that conflict with each other can cause a registry error.  Unfortunately, you won’t even know that the error is occurring until after you experience it.  You may have created a registry error months ago and not even realize it!

The most common causes of Windows registry errors are (in no particular order):

• Invalid registry entry value(s) - Many registry entries are given a “value”, a numeric value that defines how the registry entry operates.  If the entry ‘NO_ERRORS’ is set to ‘1′, for example, you won’t receive any computer errors!  Hooray!  But, if the entry ‘NO_ERRORS’ is set to ‘0′ you can expect a host of problems!  Obviously, the entry ‘NO_ERRORS’ doesn’t actually exist.

• Improper editing of the registry - Before you get any ideas it’s important that you understand something: unless you are an experienced programmer you have absolutely no reason to attempt to edit the registry… so DON’T. That is all.

• Corrupted program installations or uninstallations - Almost all applications will reference and modify the Windows registry during installation or uninstallation.  If something happens during an installation/uninstallation to currupt the process you may be left with a mangled registry as a result.

• Malicious software or scripts - We may never understand their motives, but for whatever reason some less-than-lovable people will (and have) create programs/scripts that are designed to negatively modify your system registry.  These programs are often misrepresented as desirable programs (such as a popular file sharing program).

• Viruses, spyware, and/or malware - Similar to the scripts mentioned above, viruses/spyware/malware may modify your system registry to suit their purposes.

How to Repair a Windows Registry Error

If you are experiencing symptoms of a damaged registry (a slow, sluggish computer, random application freezing and crashes, pop-up errors, blue screen of death, etc.) you may feel that your computer is a write-off.  However, chances are good that your registry can be easily repaired.

Aside from taking your computer to a computer repair specialist there are typically two ways to repair your registry: manually (not recommended), or using a registry repair program (such as Registry Fix, Registry Easy, or Registry Genius).  Repairing your registry manually is free, but it should only be attempted by someone who is experienced and qualified to be modifying the Windows registry.  If you are reading this article there is a 99.99% chance that the person before-mentioned is not you.

A registry repair program typically costs less than $50 and will automatically scan your computer for any registry errors (along with a host of other errors and ailments your computer may be experiencing) and then repair them.  90% of the time a registry repair program will be all you need to get your computer back on track.

Unsure of which registry repair program is right for you? Read our reviews of the following programs:

• Registry Easy - Highly recommended.

• Registry Fix - Also highly recommended.

• Registry Genius - Highly recommended.