A Free Registry Scan Is Just A Plus...
The Windows registry is nothing more than a ever-growing database that lives in all Windows operating system that holds all the settings, options, preferences, and hardware options of the user. It continues to grow each time you boot Windows. Each time your computer starts, the system first reviews the registry to let all installed program know the settings, documents, program paths, and much more stuff. The registry gradually accumulates clutter this way, and this eventually leads to a degradation in the computer’s speed.
When you install and, later, uninstall a piece of software, little bits of it will be left in the Windows registry database also.
Here's the rub -- Once you have made a change to the registry, you can’t undo it without special programs (or manual editing).
Manually editing your registry could be a disaster and is NOT something the average computer user should try. Think of it this way: the best registry is always an unmolested registry.
Ever since Windows 95, most if not all programs will deliberately place permanent entries in Windows registry to preserve licensing information, that are not deleted when the program is uninstalled. This left over "stuff" continues to accumulate until a registry cleaner application is used to get clean it out.
Also, all software malfunctions could further corrupt your registry.
What to look for in a great registry cleaner
Registry cleaners are designed to scan the registry, identify, and delete the unneeded entries it holds. But that is the perfects situation. The truth is, there IS no perfect registry cleaner. All registry cleaners have algorithms which assist them “identify” what is a necessary key and what is junk. There is no method of knowing if deleting a registry entry will impact computer performance in subtle ways. So, a good registry cleaner should let the user to backup the registry before you begin cleaning the registry.
Here's a manual way to back-up the registry very simply:
Click Start - Run
Type in the words - regedit (which opens up the registry editor window)
From the box, hit File - Export
Save it as something you'll remember, preferably including the date
If you observe, there's really 4 kinds of registry cleaners:
Deep scan registry cleaners
Surface scanning registry cleaners
Balanced scanning registry cleaners
Scam registry cleaners
A deep cleaner is actually harmful to your system since it may delete some important registry keys by being overzealous. A light scanning program, isn’t much use either; it merely scans the surface. A bogus registry cleaner is dangerous, since it is spyware disguised as a registry cleaner. Do not download something simply because it’s free!
The “best” registry cleaner is one that:
Defrags your registry
Allows backups of the registry
Asks you if you would like to delete each entry and provides solutions
Perform other functions in addition to registry work
Instead of just suffering with the slow speed of your system and the constant blue-screens, you can, in fact, do something about it. Do yourself a favor and get yourself a recommended registry cleaner. It will help your system run as smoothly and quickly as the day it was brand new.