The Microsoft Windows registry is a hierarchical database of system configuration data. Many of the programs written for Windows 32-bit and 64-bit platforms require data from the registry. This means it is used often, and some programs really like to hammer the registry. Running a program such as SysInternal's RegMon, which logs access to the registry, can show you just how much some programs make use of the registry. Even Explorer, the file browser built into Windows, makes heavy use and this can have wide impact on performance.

When Windows is first installed, the registry is relatively lean. It shouldn't contain any extraneous data nor is the data file bloated or very fragmented. Over time though this can change, especially when many programs are installed and uninstalled. When programs and other components are removed from the system they can leave behind data inside the registry.

Many programs have been made to clear out the data left behind by poorly uninstalled programs. The original, RegClean, was developed by Microsoft. A search on the web will show many results for registry cleaners, some sites touting their commercial solution as a cure-all for any Windows problems. Choosing a registry cleaner is best done on good advice, and forums are a great place to look and ask what cleaners people are using. I suggest you find a shareware or freeware cleaner, it's not worth paying for one when there are excellent free ones available. RegClean is available from Microsoft Download Centre.

After data is deleted from the registry, the space in the file used by that data is kept until it can be re-used by newly added data. If lots of very small bits of data are deleted the registry can become very bloated with 'holes' where no data will fit. This causes the registry to be larger than neccesary which in turn means it is spread over more hard drive space and hence slower to access. To solve this issue there registry compactors which can rewrite fresh registry hives without the holes. I use ExperimentalScene RegCompact.NET to compact my registry - with great success. My system very noticeably speeds up when the registry has been very bloated and I compact it.

Once the registry is cleaned and compacted it also should benefit from being optimized. This is done by rearranging the location of the registry hives as they are stored on your hard drive. Like normal file optimization or defragmentation this process will further enhance the speed of the registry. To optimize the registry use SysInternal's PageDefrag which also happens to defragment the virtual memory page file.

Following these steps in order will keep your registry nice and lean, speeding up your Windows experience.

Thanks, I tried it and seems to have an improved.

anyone else give this a go yet???? I use Registry Mechanic and think that works swell.

Welcome to Neowin dude, ok thanks for the heads up good job

sweet..now that ma pc is ruunning ok hopefully thisw ill hlpe it aswell.........nice review

Nice, thanks for the info.

It seems as though things have improved for me, too. Thanks!

I'm guessing XPZilla is the author of Regcompact.net

i cannot get RegCompact.NET to load any of my hives.....

yea, stupid me tried it also and I just ended up rebooting my computer becouse it locked up.
waste of time.
It's garbage. Do yourself a favor and stick with WELL KNOWN reg cleaners.

You know it takes quite a while to load... I'm running a Pentium D 2.8GHz and it took about 5 minutes for me. Perhaps you guys just weren't patient enough...

why should it take 5 minutes? That's insane.

nifty program

Honestly, it doesn't really matter. All I care about is the fact that it worked incredibly well.

TuneUp Utilities 2006 is a great solution for registry cleaning and defragmenting in my opinion. It just works.

Odd. Never happened to me. The program never locked up and started right away and it works perfectly.

Microsoft dont support RegClean no more.
Better get some other cleaner, no? which is updated, like Registry Mechanic, RegSupreme (included in jv16 PowerTools), etc.

Not forgetting RegSeeker

Try NTREGOPT instead of RegCompact.NET (it does its job and it does'nt require Microsoft .NET Framework to be installed).

NTREGOPT is definetly the best, in my opinion. It even manages to perform what other Registry defragmenters were unable to do: defragment the registry while my Kaspersky Anti-Virus is active; it takes longer, but it makes it.

I would also recommend TuneUp Utilities 2006.

I don't understand why you advise people to use MS's RegClean, it's not been supported for at least 5 years and development seems to have stopped in 1998....

I'm trying to find Reclean @ Microsoft Download Center... but all I can find are articles dating back to 2003 saying that regclean is not supported and has been removed.

can anyone give me a direct link too regclean on the Microsoft page?

Take care using RegClean. Because it hasn't been supported for many years it can do bad things.

I know for a fact if you run RegClean it will break AutoCAD 2004 and higher versions. It took me 2 reinstallations of AutoCAD before I made the connection between running RegClean and AutoCAD becoming nonfunctional.

very nice guide, except that it does not apply to windows xp pro x64

I use MV RegClean it have a friendly interface and is easy to use
Download

I have always been worried whether or not to let a program touch my reg... i might give this a go... seems it has been a success with some people

Agreed. Awesome Program.

Thanks ... I never knew that Microsoft had its own Reg Cleaner also. Nice guide! But I could not find Microsoft's Reg Cleaner. Any idea?

RegCompact.NET isn't a registry cleaner, it compacts and optimizes registry hives.
Registry cleaners delete invalid/unnecessary entries.

APK Registry Cleaning Engine 2002++ SR-7:

http://www1.techpowerup.com//downloads/389...ooglehappy.html

Screenshot:





* Enjoy... runs across ALL Win32 versions of Windows, YES - even VISTA.

(... & does so, 110% safely (& additionally makes for one HELL of a "forensics tool" to boot... as a side-bonus/benefit!))

APK