84,488,480 programs installed

Should I remove NTREGOPT?

What percent of users and experts removed it?
9% remove it91% keep it
Overall Sentiment
Very good
What do people think about it?
Be the first to rate (click star to rate)
How common is it?
Global Rank #10,412
United States Rank #11,673
Reach 0.0340%
Lifespan of installation (until removal)
< 7.06 days
208.30 days >
Average installed length: 109.44 days

Other programs by Lars Hederer



NT Registry Optimizer, is a Windows Registry defragmentation utility.

About  (from Lars Hederer)

The program works by recreating each registry hive "from scratch",
thus removing any slack space that may be left from previously
modified or deleted keys. Note that the program does NOT change the contents of the registry in
any way, nor does it physically defrag the registry files on the drive
(as the Pa...  Read more


NTREGOPT 1.1j is a software program developed by Lars Hederer. A scheduled task is added to Windows Task Scheduler in order to launch the program at various scheduled times (the schedule varies depending on the version). The software is designed to connect to the Internet and adds a Windows Firewall exception in order to do so without being interfered with. The primary executable is named NTREGOPT.EXE. The setup package generally installs about 4 files and is usually about 707.24 KB (724,210 bytes). Relative to the overall usage of users who have this installed on their PCs, most are running Windows 7 (SP1) and Windows XP. While about 36% of users of NTREGOPT come from the United States, it is also popular in Germany and Japan.

Program detailsProgram details

URL: www.larshederer.homepage.t-online.de
Help link: www.larshederer.homepage.t-online.de/erunt
Installation folder: C:\Program Files\NT Registry Optimizer\
Uninstaller: "C:\Program Files\NT Registry Optimizer\unins000.exe"
Estimated size: 707.24 KB

Program filesFiles installed by NTREGOPT 1.1j

Program executable:NTREGOPT.EXE
Path:C:\Program Files\NT Registry Optimizer\NTREGOPT.EXE
Additional files:
  • unins000.exe - Inno Setup (Uninstaller)
  • NTREGOPT_JP_11J.EXE (by AjariSoft) - DWiff (Update for Windows95)
  • ntregopt-setup.exe - NTREGOPT Setup

Program behaviorsBehaviors exhibited

Scheduled Task
  • NTREGOPT.EXE is scheduled as a task with the class '{F4DA7E96-7E9D-45B2-827D-0E186416D40D}' (runs on registration).
2 Windows Firewall Allowed Programs
  • unins000.exe is added as a firewall exception for 'C:\Program Files\Lavalys\EVEREST Home Edition\unins000.exe'.
  • NTREGOPT.EXE is added as a firewall exception for 'C:\Program Files\NT Registry Optimizer\NTREGOPT.EXE'.

How do I remove NTREGOPT?

You can uninstall NTREGOPT from your computer by using the Add/Remove Program feature in the Window's Control Panel.
  1. On the Start menu (for Windows 8, right-click the screen's bottom-left corner), click Control Panel, and then, under Programs, do one of the following:
    • Windows Vista/7/8/10: Click Uninstall a Program.
    • Windows XP: Click Add or Remove Programs.
  2. When you find the program NTREGOPT 1.1j, click it, and then do one of the following:
    • Windows Vista/7/8/10: Click Uninstall.
    • Windows XP: Click the Remove or Change/Remove tab (to the right of the program).
  3. Follow the prompts. A progress bar shows you how long it will take to remove NTREGOPT.

Win 7 (SP1) 43%
Win Vista 0%
Uninstall it 9%
Keep it 91%

Windows OS versionsWindows

Which Windows OS versions does it run on?
Windows 7 44.58%
Windows XP 37.00%
Windows 10 10.25%
Windows Vista 7.88%
Windows Server 2003 0.30%
Which OS releases does it run on?
Microsoft Windows XP 37.23%
Windows 7 Home Premium 18.84%
Windows 7 Ultimate 11.70%
Windows 7 Professional 11.55%
Windows Vista Home Premiu... 5.47%
Windows 10 Pro 3.19%

Distribution by countryGeography

35.85% of installs come from the United States
Which countries install it?
  United States 35.85%
  Germany 20.60%
  Japan 13.56%
  France 4.69%
  Netherlands 3.00%
  Canada 2.74%
  United Kingdom 2.61%
  Italy 2.22%
  Belgium 1.43%
  Australia 1.30%
  Austria 1.30%
  Spain 1.30%
  Brazil 0.78%
  Switzerland 0.65%

OEM distributionPC manufacturers

What PC manufacturers (OEMs) have it installed?
Dell 26.80%
Hewlett-Packard 13.83%
Acer 13.54%
American Megatrends 7.20%
Intel 6.92%
ASUS 5.48%
Sahara 4.03%
NEC 2.88%
Medion 2.59%
Lenovo 2.02%
MSI 1.15%
Common models
ThirdWave Corporation Pri... 3.25%
HP Pavilion dv6 Notebook ... 2.60%
ASUSTeK C51/MCP51 1.95%
Dell OptiPlex 745 ... 1.95%
Dell OptiPlex 760 1.95%
Dell OptiPlex GX620 ... 1.95%


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