Comparison of 176 Registry Cleaner Products: Fresh Windows Test

By Jouni Flemming, Joel Toivonen and Veera Peltonen. The authors are employed by Macecraft Software, author of jv16 PowerTools products

Fresh Windows Test

Some registry cleaner products have been guilty of displaying non-existent errors, or of using other methods of increasing the number of “found” errors in an attempt to get the user to purchase the product.

In this test, we used a freshly-installed copy of Windows 7; with no updates and no third-party software installed. After each product test the system was restored back to its original state utilizing a backup image. This test relies on the assumption that a freshly-installed Windows operating system should not contain many registry errors.

Product Errors Found
1-ACT Registry Cleaner 2006 219
1 Click Fixer Plus 151
1-Click PC Fix 105
360 Amigo System Speedup 302
Abexo Registry Cleaner 300+*
Ace Utilities 67
ACleaner 90
Advanced PC Optimizer 471
Advanced Registry Optimizer 133
Advanced System Care 12
Advanced System Optimizer 3
All in One Cleaner 107
AML Free Registry Cleaner 86
AMUST Registry Cleaner 22
Ashampoo winoptimizer 59
Auslogics Registry Cleaner 27
Bug Doctor 6
CCleaner 3
Chily Registry Cleaner 600
CleanMyPC Registry Cleaner 113
COMODO System Cleaner 81
CyberDefender Registry Cleaner 185
Dedaulus System Cleaner 38
Desktop Maestro 50
Digeus Registry Cleaner 478
EasyCleaner 214
EnhanceMyVista Pro (censored)
Eusing Free Registry Cleaner 87
Ez Registry Cleaner 900
Fixio PC Cleaner 2010 183
Fix-it utilities 10 Pro 118
Free Professional Registry Doctor 56
Free Registry Fix 5.0 1281
Free Window Registry Repair 530
Frontline RegCleaner 645
Glarysoft Registry Repair 38
jv16 PowerTools 2009 233
jv16 PowerTools 2010 41
LogiGuard Master Mechanic II 85
Max PC 53
Max Registry Cleaner 305
MCS Registry Cleaner 2008 835
Migo Registry Repair 1437
MV RegClean 5 337
My Bug Free PC 124
nCleaner 437
NetGate Registry Cleaner 176
Norton Utilities 50
OK Registry Cleaner 611
ParetoLogic PC Health Advisor 34
PC Bug Cleaner 6192
PC Error Cleaner 63
PC-Kitchen Registry Cleaner 75
PC Doc Pro 211
PC Registry Cleaner 1000
PCSleek Free Error Cleaner 439
PerfectOptimizer 0
PerfectSpeed PC Optimizer 68
Pimasoft Registry Cleaner 60
Pointstone Registry Cleaner 62
Privacy and Registry Cleaner 98
PowerTools Lite 30
QCleaner 865
Quick Registry Cleaner 578
Quicksys RegCleaner 2009 293
QuuSoft Registry Cleaner 742
Reg Organizer 214
RegAce 715
RegAdvance 220
RegClean Pro 47
RegCleaner 18
RegCross Registry Cleaner 179
RegCure 34
Reg Fix Mantra 33
RegiGuard 84
Registry Clean Master 108694
Registry Cleaner 4 340
Registry Cleaner And Fixer 108
Registry Cleaner Free 63
Registry Distiller 404
Registry Doctor 145
Registry Help 177
Registry Mechanic 52
Registry Repair Pro 37
Registry Speedup 428
Registry Clean Expert 139
Registry Life 84
Registry Convoy 177
Registry Defense 942
Registry Easy 522
Registry Genius 611
Registry Kit 100
Registry Medic 2008 144
Registry Medic 5 143
Registry Reviver 453
Registry Rid 177
Registry Sweeper Pro 224
Registry Winner 343
Registry Fix It 100
RegScrubVistaXP 573
RegSeeker 1846
RegTidy2009 181
RegTool 231
RegToy 912
RegTweaker 865
RegUtility 1291
RegVac Registry Cleaner (censored)
Regwork 392
RegZooka 348
Riverbit Registry Cleaner 325
Security Stronghold Registry Cleaner 287
Slow-PC Fighter 453
Smart PC 296
Super Rabbit Registry Optimizer 77
SuperEasy SpeedUp 31
System Mechanic 119
System Cleaner 65
TuneUp Utilities 2010 (censored)
TweakNow PowerPack 2010 324
TweakNow RegCleaner 324
Ultimate Registry Cleaner 46
Uniblue Registry Booster 2010 63
Vista TuneUpSuite 556
Vit Registry Fix Free Edition 409
WinASO Registry Optimizer 390
WinCleaner OneClick Professional Clean (censored)
Windows7 Manager (x64) 296
Windsty Registry Cleaner 540
Winferno Registry Power Cleaner 1639
WinMend Registry Cleaner 708
WinTools.net Professional 457
WinUtilities 95
Wise Registry Cleaner Pro 105
Wondershare Registry Optimizer 390
WINner Tweak Registry Cleaner XP 7
WyvernWorks Registry Fix-Up 2004 151
XP Repair Pro 190
Your Cleaner 556
Your Free Registry Cleaner 57
* = The product only reports that it found “over 300 items.” Color Codes: Green background is used for all products which found 300 errors or fewer.

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