Most Popular in Diagnostic Software from Download.com Copyright 1997-2005 CNET Networks, Inc. http://www.download.com/ en-us 24 http://www.download.com/Advanced-WindowsCare-Personal/3000-2086_4-10833219.html?tag=pop.feed&subj=Advanced-WindowsCare-Personal&part=rss Protect, repair, optimize, and clean your computer in one click. (178,521 downloads) 1 139 6156252 http://www.download.com/CCleaner/3000-2144_4-10837066.html?tag=pop.feed&subj=CCleaner&part=rss Clean up junk files and invalid Registry entries. (64,506 downloads) 2 64 4473215 http://www.download.com/Advanced-WindowsCare-Professional/3000-2086_4-10835000.html?tag=pop.feed&subj=Advanced-WindowsCare-Professional&part=rss Automatically remove spyware and fix your registry. (25,312 downloads) 3 50 514314 http://www.download.com/SiSoftware-Sandra/3000-2086_4-10834499.html?tag=pop.feed&subj=SiSoftware-Sandra&part=rss Benchmark, test, and analyze your computer. (11,075 downloads) 4 70 972329 http://www.download.com/FreeRAM-XP-Pro/3000-2086_4-10516960.html?tag=pop.feed&subj=FreeRAM-XP-Pro&part=rss Increase your system performance by cleaning the content of your RAM. (9,798 downloads) 5 267 5388284 http://www.download.com/Glarysoft-Registry-Repair/3000-2086_4-10798440.html?tag=pop.feed&subj=Glarysoft-Registry-Repair&part=rss Fix your Registry and optimize your PC's performance. (6,960 downloads) 6 15 276343 http://www.download.com/Everest-Ultimate-Edition/3000-2086_4-10832752.html?tag=pop.feed&subj=Everest-Ultimate-Edition&part=rss Optimize your system performance and realize advanced hardware monitoring and diagnostics. (6,772 downloads) 7 114 1313831 http://www.download.com/TweakNow-RegCleaner-Standard/3000-2094_4-10628251.html?tag=pop.feed&subj=TweakNow-RegCleaner-Standard&part=rss Remove obsolete entries from your Windows Registry. (5,637 downloads) 8 173 1930480 http://www.download.com/Quick-Startup/3000-2086_4-10764401.html?tag=pop.feed&subj=Quick-Startup&part=rss Save your time by getting rid of all those programs that load at start-up. (4,870 downloads) 9 29 233215 http://www.download.com/Wise-Disk-Cleaner/3000-2086_4-10835436.html?tag=pop.feed&subj=Wise-Disk-Cleaner&part=rss Scan, clean, and repair your Windows registry. (4,145 downloads) 10 9 169684