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User Reviews

NTRegOpt
NTRegOpt

NTRegOpt is a registry compactor that improves system performance by compacting the registry, removing any slack space that may be left from previously modified or deleted keys. The program does not ...

Average of 14 user ratings: 5
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  • Nov 16, 2008
  • For version:
  • 1.1.j

quote  Easy to use.  quote

  • Interface: 4
  • Features: 5
  • Ease of use: 5
  • Value: 5
  • Overall: 5

Easy to use tool, does what it says, helped speed up my computer and start time. Requires a reboot after the optimisation. Brilliant allrounder and it's free.

user Review by: mitchandclaire
First post


  • Jan 03, 2008
  • For version:
  • 1.1.j

quote  Solved my problem....  quote

  • Interface: 4
  • Features: 4
  • Ease of use: 5
  • Value: 5
  • Overall: 5

My computer was a little sluggish and wasn't working like it should have been running. I knew that there were problems within the Registry. After running NTRegOpt and rebooting, my computer ran like a charm. It is as fast as it ever was and is giving me no trouble at all. Runs like a brand new computer. Thanks to whomever put NTRegOpt in this site.

user Review by: coachpisco
First post


  • Jul 20, 2007
  • For version:
  • 1.1.j

quote  Great  quote

  • Interface: 5
  • Features: 5
  • Ease of use: 5
  • Value: 5
  • Overall: 5

Simple and effective. excellent!!

user Review by: ko_mrkm
First post


  • Mar 11, 2007
  • For version:
  • 1.1.j

quote  Must-haves for winxp!  quote

  • Interface: 5
  • Features: 5
  • Ease of use: 5
  • Value: 5
  • Overall: 5

NTRegOpt and Erunt are direct, straight forward, and fast apps for compacting and backing up the registry in Windows XP. My registry was compacted by 6% and only took seconds. Erunt Reg Back-up places your registry in a convenient folder in C:/. Couldn't be easier and FREE!! Highly Recommended.


  • Jan 11, 2007
  • For version:
  • 1.1.j

quote  Mighty good  quote

  • Interface: 5
  • Features: 5
  • Ease of use: 5
  • Value: 5
  • Overall: 5

Does what it claims to do in Win XPMC quickly and efficiently. Suitable for anyone as far as I can see.


  • Nov 02, 2006
  • For version:
  • 1.1.j

quote  A remarkable utility!  quote

  • Interface: 5
  • Features: 4
  • Ease of use: 5
  • Value: 5
  • Overall: 5

It optimized my registry by 76%, and that's no typo. I was stunned by it's speed and apparent abilities... But also by the fact that users report around ~6% optimization! Just goes to show you are not always right about your system health. Thanks to Lars Hederer and Web Attack. Highly Recommended

user Review by: deadlokIV
First post


  • Apr 05, 2006
  • For version:
  • 1.1.j

quote  Does what its says  quote

  • Interface: 2
  • Features: 5
  • Ease of use: 5
  • Value: 5
  • Overall: 5

It optimized my registry by 7%. great stuff, very useful!


  • Mar 04, 2006
  • For version:
  • 1.1.j

quote  Ntregopt rocks!  quote

  • Interface: 4
  • Features: 4
  • Ease of use: 5
  • Value: 5
  • Overall: 5

NTRegOpt Rocks! Does what it says.


  • Jan 19, 2006
  • For version:
  • 1.1.j

quote  Why optomize ?  quote

  • Interface: 5
  • Features: 5
  • Ease of use: 5
  • Value: 5
  • Overall: 5

If you defragment and do not optomize registry first, you are only doing half the job ! This program is great !

user Review by: MILTY__
First post


  • Apr 25, 2005
  • For version:
  • 1.1.h

quote  Great registry tool  quote

  • Interface: 5
  • Features: 5
  • Ease of use: 5
  • Value: 5
  • Overall: 5

Fast,easy and free. Worked great on my computer with XP-SP2. If you clean your registry of junk you need this tool to close any gaps left by stuff you removed. Helps the registry load faster at boot up.


  • Feb 03, 2005
  • For version:
  • 1.1.f

quote  Cool  quote

  • Interface: 5
  • Features: 5
  • Ease of use: 5
  • Value: 5
  • Overall: 5

It does what it says, without any problem. Works fine. My registry was reduced by 6%


  • Jan 04, 2005
  • For version:
  • 1.1.f

quote  Ntregopt  quote

  • Interface: 5
  • Features: 5
  • Ease of use: 5
  • Value: 5
  • Overall: 5

This tool is great, works like a charm. Simple to use, no errors and does not hang my XP computer. It's worth a try, so check it out...

user Review by: Diaryland
First post


  • Oct 30, 2004
  • For version:
  • 1.1.f

quote  It's a good prep for xp service pack 2  quote

  • Interface: 5
  • Features: 5
  • Ease of use: 5
  • Value: 5
  • Overall: 5

I always use "NTRegOpt" qnd "ERUNT" to prep for XP-SP2. In my opinion, these utilities reduce the chances for Registry glitches to cause problems for an SP2 install, especially if the PC has had malware removed (Registry glitches in conjunction with SP2 can be a pain-in-the-butt -- or so says the Voice of Experience).


  • May 24, 2004
  • For version:
  • 1.1.c

quote  Good stuff  quote

  • Interface: 5
  • Features: 5
  • Ease of use: 5
  • Value: 5
  • Overall: 5

Will work with xp sp2. I use this and erunt both from the same maker and both excellent.