CCleaner (formerly Crap Cleaner) is a freeware system optimization and privacy tool. It removes unused and temporary files from your system - allowing Windows to run faster, more efficiently and giving you more hard disk space. The best part is that it's fast! (normally taking less than a second to run) and Free.

 

CPU-Z is a freeware utility that gathers information on some of the main devices of your system. CPU-Z does not need to be installed, just unzip the files in a directory and run the .exe. In order to remove the program, just delete the files and that's it. The program does not copy any file in any Windows directory, nor write in the registry.

 

By Mark Russinovich
Published: February 4, 2009
Introduction

Ever wondered which program has a particular file or directory open? Now you can find out. Process Explorer shows you information about which handles and DLLs processes have opened or loaded.