Glary Utilities is a do-it-all piece of software that can help your PC run more smoothly, and gives you extras, such as a file shredder and encryption tools.
WinPatrol helps you weed out unnecessary programs from running when you start your PC.
Autoruns makes your PC zippier by helping you stop unnecessary programs and services from running in the background.
Secunia PSI keeps the software on your system patched and up to date.
Eusing Free Registry Cleaner
Keep your PC running in tip-top shape by cleaning its Windows Registry with Eusing Free Registry Cleaner.
Free Registry Defrag
Free Registry Defrag may speed up your PC by defragmenting the Registry, although not everyone believes that shrinking the size of the Registry will make a significant performance difference.
Clean out "craplets" and unneeded junk on your system with PC Decrapifier.
Rid your PC of old files and junk with CCleaner.
Duplicate Music Files Finder
If you want to rid your PC of duplicate music files, Duplicate Music Files Finder will solve your problem.
Easy Duplicate File Finder
Get extra space on your hard disk by finding and deleting duplicate files with Easy Duplicate File Finder.
Running out of hard disk space? Offload some of your files to Microsoft's SkyDrive, which gives you 25GB of free online space, accessible from anywhere.
Get detailed information about your hardware with Belarc Advisor.
Monitor the temperature of your PC with SpeedFan.
Wubi Ubuntu Installer
Want to run Linux without giving up Windows? The Wubi Ubuntu Installer installs a dual-boot version of Ubuntu Linux on your PC.