Diagnostic Software

Use the CNET Download.com Diagnostic Software listings to find the best PC diagnostics for evaluating, monitoring, and optimizing your Windows system. Boost RAM or find top-rated Registry cleaners. For more diagnostic software resources, visit the most popular diagnostic software pages or find the newest diagnostic software releases.

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Advanced WindowsCare Personal 2.7.2 Protect, repair, optimize, and clean your computer in one click. Read editor's review...	CNET Review: User rating:	05/04/2008	6,432,958	Download Now
FreeRAM XP Pro 1.52 Increase your system performance by cleaning the content of your RAM. Read editor's review...	CNET Review: User rating:	03/23/2006	5,404,239	Download Now
CCleaner 2.07.575 Clean up junk files and invalid Registry entries. Read editor's review...	CNET Review: User rating:	04/29/2008	4,550,193	Download Now
RAMBooster 2 Monitor and improve your RAM performance automatically. Read editor's review...	CNET Review: User rating:	12/08/2005	3,451,385	Download Now
TweakNow RegCleaner Standard 3.0.1 Remove obsolete entries from your Windows Registry. Read editor's review...	CNET Review: User rating:	01/16/2007	1,938,026	Download Now
Sponsored MemTurbo 4.1 Optimize memory and manage computer's cache. Read editor's review...	CNET Review: User rating:	06/28/2007	1,622,947	Download Now
Advanced System Optimizer 2.01.4 Optimize your Windows system for higher performance, defrag your registry, and remove junk files. Read editor's review...	CNET Review: User rating:	12/10/2004	1,335,412	Download Now Buy Now
Everest Ultimate Edition 4.50.133 Optimize your system performance and realize advanced hardware monitoring and diagnostics.	User rating:	04/18/2008	1,325,800	Download Now Buy Now
Ace Utilities 4.1 Optimize, speed up, and clean your system.	User rating:	01/09/2008	1,000,446	Download Now Buy Now
SiSoftware Sandra XII SP2c Benchmark, test, and analyze your computer.	User rating:	04/24/2008	989,003	Download Now