Comparison of 176 Registry Cleaner Products: Other Error Detection

These tests were performed in October 2010

Other Error Detection Comparison

This test was performed on the 58 products that found at least some of the incorrect file references in the two previous tests. Using a freshly-installed copy of Windows 7, the following four errors were manually inserted into the registry:

  • 1. Critical registry data relating to .bat file extension was removed, causing Windows to be unable to execute .bat files.
  • 2. An incorrectly formatted entry was added under the HKEY_LOCAL_MACHINE\Software\Windows\CurrentVersion\Run key.
  • 3. An empty key was added under the HKEY_LOCAL_MACHINE\Software\ key to simulate a left-over data from an uninstalled software.
  • 4. An incomplete set of uninstallation data was added under HKEY_LOCAL_MACHINE\Software\Windows\CurrentVersion\Uninstall.

These registry errors did not contain any file references, valid or invalid.

Product Finds Error 1 Finds Error 2 Finds Error 3 Finds Error 4
1 Click Fixer Plus No No No No
Abyssal Registry Cleaner No No No No
Ace Utilities No No Yes No
Advanced PC Optimizer No No No No
Advanced Registry Optimizer No No No No
Advanced system Optimizer No No No No
AML Free Registry Cleaner No No No No
Bug Doctor No No No No
CyberDefender Registry Cleaner No No No No
Desktop Maestro No No No No
Digeus Registry Cleaner No No No Yes
EnhanceMyVista Pro (censored) (censored) (censored) (censored)
Frontline RegCleaner No No No No
Glarysoft Registry Repair No No No No
jv16 PowerTools 2009 Yes No No No
jv16 PowerTools 2010 Yes Yes Yes Yes
MaxPC No No No Yes
Max registry Cleaner No No Yes No
MCS Registry Cleaner 2008 No No No No
MV RegClean 5 No No No No
Norton Utilities No No No No
OK Registry Cleaner No No No No
PC Error Cleaner No No No No
PC Doc Pro No No No No
PowerTools Lite No No No No
Quick Registry Cleaner No No No No
QuuSoft Registry Cleaner No No No No
RegOrganizer No No Yes No
RegAce No No No No
RegClean Pro No No No Yes
RegCleaner No No No No
Reg Fix Mantra No No No No
RegGenie No No No No
Registry Cleaner And Fixer No No No No
Registry Distiller No No No No
Registry Help No No No No
Registry Mechanic No ?* No No
Registry Repair Pro No No No No
Registry Speedup No No No No
Registry Life No No No No
RegistryEasy No No No No
RegistryGenius No No No No
RegistryKit No No No No
Registry Reviver No No No No
RegScrubVistaXP No No No No
RegSeeker No No No No
RegWork No No No No
Smart PC No No No No
SystemCleaner No No No No
Vista TuneUpSuite No No Yes No
Vit Registry Fix Free Edition No Yes No Yes
Windows7 Manager (x64) No No No No
Windsty Registry Cleaner No No Yes No
WinMend Registry Cleaner No No No No
WinUtilities No No No No
Wise Registry Cleaner Pro No No No No
WyvernWorks Registry Fix-Up 2004 No No No No
XP Repair Pro No No No Yes

* = Trial version does not show full registry data, so it is impossible to determine whether the product detects this error or not .

Color Codes: Green background is used for all products which found at least 50% (i.e. 2) of the test errors.