Because these files are so important, the Windows operating system does not allow users to make changes to registry files directly.  Instead users must use a specially designed utility, known as the registry editor.  This program can be invoked by clicking on the Start button, choosing Run from the menu and typing regedit in the box.

When the registry editor appears, the structure will resemble that of Windows Explorer, with a hierarchical layout, folders and subfolders.  Users can drill down through these settings to find the entry, or registry key, they wish to change.

While manually editing the registry can sometimes be necessary, it can also be dangerous, and users are advised to always back up their registry before making even the smallest change.  Backing up the registry allows users to restore the file to its previous state should something go wrong.

Since the registry is so critical to the proper operation of the Windows operating system, it is also a good idea to run a quality registry cleaner on a regular basis.  Regular cleaning and optimizing of the Windows registry is one of the best ways to keep the system running its best and avoid problems down the road. Corrupted registry files and missing or extra registry keys can cause all sorts of issues, from unexpected system shutdowns and spontaneous reboots to sluggish performance.  By keeping the registry in good repair PC owners can harness the power of this vital file and keep their computer running at top speed.

Spyware and adware can also leave their marks on the registry.  Some malicious software programs try to burrow their way into the Windows registry, where they can hide from detection.  The registry keys created by these malicious programs can also wreak havoc on the computer, causing crashes, freezes and other serious problems.

When these problems take place computer users have a number of options at their disposal.  One of the easiest, and most effective, is to run a quality registry protection and cleaning program.  Running one of these programs on a regular basis can keep the system performance optimized and spot potential problems before they have a chance to crash the system.

The other option is for the user to edit the registry on their own.  This can be a viable option for those with the requisite skills, but it should always be done with caution.  It is important to make a backup copy of the registry before making any changes.  This will allow the original version of the registry to be restored in case there are issues down the road.

The first step is to open the registry using the Regedit tool.  This tool can be accessed by pressing the Start button, choosing Run from the menu and typing Regedit in the box.  The registry editor will then open and the user can navigate to the registry key that needs to be edited.  It is recommended that the registry be backed up before the key is changed.  It is easy to make a backup copy of anything from a single registry key to the entire registry by simply clicking File > Export and telling Windows where to save the backup copy of the file.  If the registry key needs to be restored later it can be brought back by using the File > Import utility.  The importance of backing up the registry cannot be overstated, and this simple step can save many hours of hassle should something go awry.

The redundant data, and the invalid registry entries, can negatively affect your PCs performance.  While empty registry entries aren’t generally problematic, eventually the accumulation of them may cause a noticeable, though minute, performance lag on some computers. However, the real problem lies with the invalid registry entries — these can be the real PC-performance robbers.

Just about any program that you run on your PC receives its “directions” from the registry. These directions tell it where to find the files needed to start, and sometimes run, your program. However, if you have invalid entries in your computer’s registry, this may cause there to be multiple sets of “directions” for the same application. This is like being the driver in a car, with a navigator beside you, but two back-seat drivers telling you the “best” way to get to your destination.

The extra directions will either slow you down, cause you to get lost, or bring you to a complete standstill while you figure out what to do.  It’s the exact same thing with your computer — invalid registry entries can cause application slowdowns, system instability, and sometimes even the complete loss-of-use of a program.

All of this said — this does not mean that a registry cleaning program will speed up your computer today. It absolutely can, but that really depends on whether or not you have existing issues that would warrant the use of a registry cleaning tool.  Now, running a registry cleaner on a semi-regular basis is considered by many to be an integral part of your PCs ongoing maintenance — kind of like an oil change for your vehicle.  It’s a form of preventative maintenance inasmuch as it is a way to fix existing registry-related errors.

Bottom line — registry cleaners can cause your computer to run faster, and they can even help to prevent future registry-related problems if you use professional registry cleaning software.

The main reason to use a registry cleaner is not to free up space, but to increase the speed of your software. When you remove all of those invalid, incorrect, or no longer used entries, the computer does not need to go through all of those entries before it can reach the correct, valid, and currently used entries, therefore causing all of your programs to run quicker. How are all of those extraneous entries created in the first place?

The most common way that extraneous registry entries are created is through uninstalling software. When you install software, it creates an executable file (.exe) in your registry. The computer needs this executable file to execute the software.  When you uninstall that software, though the software is gone, the executable file for that software still exists in the registry, even if the software it executes no longer exists.

Another reason that extraneous registry entries can be created is through malware creating malicious entries. If you have malware installed on your computer, it will create malicious registry entries to try to get your registry to do what it wants it to do, instead of what it should be doing.

Extraneous registry entries can be caused by poorly written software programs.  When you install poorly written software programs to your computer, extraneous registry entries can be written. The software may create more entries than it actually needs to perform. Extraneous entries can also be caused by errors in software programs, or errors in compatibility. For example, you might have a great software program that is trying to interact with a software program that it is incompatible with. This will create extraneous registry entries.

Lastly, extraneous registry entries can also be caused by a corrupted or damaged registry. In this case, the registry itself is creating extraneous entries. As you can see, extraneous registry entries are quite common, and can be caused by a variety of reasons. While these entries do not take up a lot of space, they do slow down your computer, and while cleaning the registry does not free up a lot of space, it does increase the speed of all of your computer’s software applications.

However, if you are experiencing application lag, applications freezing up, error messages, or intermittent system instability, there’s a good chance that a registry fixer may be able to eliminate at least some of your computer’s existing problems.
Registry fixers, more commonly known as registry cleaners, do a number of things that can help to improve your PCs overall performance. However, their benefits extend beyond just PC optimization; a registry cleaning program is quite adept at fixing certain problems on your computer as well.

With everyday or even occasional use, your computer’s registry will start to fill up with redundant data, and sometimes even invalid data. In some cases, this invalid data can cause certain problems with your computer’s ability to operate correctly.  Maybe a program won’t load for you, maybe you get a popup error every time you open or close a certain program, or maybe your computer just reboots out of the blue, all by itself. Whatever the case may be, these are symptoms of registry-related problems.

A registry cleaner program, at least with the professional software, will remove the instances of invalid information from within your computer’s registry. If your particular error is registry-related, a one-time cleaning by a decent-or-better registry cleaning program will restore functionality to the problematic applications and help to keep your computer running smoothly.

Now, depending on how you use your computer, running a registry cleaner on a semi-regular basis is a recommended part of your PCs maintenance anyway.  However, it is also a good choice if you’re experiencing any of the symptoms that we’ve outlined above.
While a registry cleaning program cannot repair every error that you may encounter on your computer, it is a cheap, and smart, first step when you’re trying to diagnose and fix errors on your PC.

With registry cleaners, there are two major types of risk:
1) Downloading and installing a malware-infected registry cleaning tool
2) Using a registry cleaner that does not offer registry backups before the cleaning, or repair, process

And, the good news here is that you are fully able to avoid using these types of applications.

Malware-infected registry cleaners

In most cases, malware-infected registry cleaners present themselves through so-called “scareware” advertising tactics.  If you’ve been using the internet for a while, you’ve probably already encountered these less-than-ethical advertisements.
These ads are normally very persistent — they’ll take over your browser, try to force a download, or flash a page to you that states your registry is corrupted, you have traces of illegal activity on your PC, or similar wording.  In another words, “scareware” — the company plays the fear card in order to get you to download and install their software.

Now, not all scareware downloads will result in you installing various malware and viruses on your computer, but the chances increase for this to happen if you obtain your registry cleaning tool through these venues. To avoid this, simply download a registry cleaning program from a trusted website, on your own terms, after you’ve had the chance to look things over.

Registry cleaning tools without a backup option

Your Window’s registry is very sensitive, and it literally controls your entire Windows-based computer system. Because registry cleaning software cannot plan for every anomaly in your computer’s registry — there is a possibility that a registry cleaning will weigh unfavorably with a certain application at one point in time.
If the registry-repair tool that you are considering does not have an easy-to-use registry backup option — do not download, buy, test, or use that software.  All professional registry cleaning applications include backup options, so if you choose a reliable vendor — you don’t have anything to worry about in this regard.

The risks of using a registry-cleaning tool on your computer are minimal, if you pay attention to what you’re downloading. These two tips alone can help ensure that you pick a safe, and effective, registry cleaning program for your PCs maintenance needs.

Registry cleaners are compatible with any Windows software programs. This means that if you install a registry cleaner, it will be compatible with all of your software, as long as you are using a Windows operating system. Just make sure that if you are using one of the newer Windows operating systems, that you use a registry cleaner that is compatible with that particular operating system. While the majority of registry cleaners are compatible with the older Windows operating systems, some are not compatible with the newer operating systems.

It is not likely that you will run into any compatibility issues with your registry cleaner. However, there is a very small possibility that a software program will not run properly after using your registry cleaner. This is because there is a very small chance that the registry cleaner will remove an entry that was necessary for the proper function of that particular program.

The easiest way to solve this issue is to restore your computer’s registry to the status it was in before it was cleaned, using your registry cleaning software’s backup system. You should always, always backup your registry before making any changes to it. In fact, you should backup any part of your computer before you make any major changes to it, such as changing or deleting files, etc.

In fact, using a registry cleaner regularly should improve your software’s speed by decreasing the amount of time the computer spends going through the registry entries, searching for the ones needed to run your programs. If you remove the needless entries, your computer will not need to waste time going through all of those entries that it is not even using in the first place.

In conclusion, using a registry cleaner is a safe way to clean the unneeded clutter from your computer’s registry. You will not run into any compatibility issues, as long as you make sure to select a registry cleaner which is compatible with your operating system.