To attain its Optimal Performance and to Avoid Common Computer Issues, Registry Cleaner is the main answer to all your PC problems
You can visit there website, Registry Easy and you can try their Free Scan Inside, Try it out...
Does Your Windows Registry System Need Repair?
Is Your Computer Getting Slower and Sloooower? 
- Are you seeing frequent error messages & crashes?
- Does your computer freeze right when you're doing something important?
- Do you get "blue screen" error notices?
- Are you noticing errors that say "unable to load…" for .dll files?
- Does it seem like things are going from bad to worse?
If that's the case, then you may be experiencing a critical (yet easily repaired) problem with what is known as the Windows Registry.
Windows has a built in checker and scheduler for all the actions and programs - both the default ones that came with your computer as well as new ones you installed. That is what the "registry" is.
So when you add and remove programs, the registry updates itself to keep track. That's how it supposed to work…
Unfortunately, all versions of Windows - including Vista - have a weakness: If there is a single mistake in the registry, the whole "record" its kept track of can get damaged.
A mistake like this can begin from something as simple as uninstalling an application, or getting an update to a program you already have. Sometimes, you have done nothing, and the normal daily operations can create an error in the registry which leads to all the frustrations described above.
And if the problem is not dealt with, things can get much worse, because the record that the registry is trying to keep is being built on a broken framework. Restarting won't help and neither will an anti-virus program.
It's like driving with faulty brakes, hoping things will get better if you restart your car.
The Plain Truth Is: You Need to Repair Your Windows Registry, or Your Computer is Just Going to Get Worse and Cause You More Frustration - Guaranteed.
It cannot be avoided. If you want your computer to respond like it did when it was new, fixing the registry is the only way that can happen.
Sadly, for most, a repair like this can cost hundreds of dollars when done by a store or "Geek" service.
But there's good news for you - you can quickly and easily restore your computer to the speed and reliability it had when you first got it, with RegCure.
The free scan is very quick, and it will amaze you how many problems it can find.
After that, just follow the easy guide and repair features, and your Registry problems will be taken care of!