Glary Utilities Pro is a Windows optimization tool which includes a lot of tools to help you.
Glary Utilities Pro features
It can clean junk data (like temporary files, history , etc) from your hard disc. To save disc space.
Repair - It can scan and repair registry (Personally am not using any registry optimizer, when ever you are playing with Registry make sure you know what are you doing, otherwise that can stop your PC to stop working)
Managing the startup applications,
Monitors and optimizes Free memory in the background
Manages the context-menu entries
Defrag the Windows registry to speed up your computer
Erases all the traces,evidences,cookies,internet history - You must use this if you are spending so much time on internet visiting secure and non secure websites. This will clear the tracking cookies from your computer.
File Shredder - Another useful operation this really helpful when u hand over or sell your USB drive or Hard drive, this will delete the files permanently (it cannot be recovered after that)
File Undelete - Quick and effective way to retrieve accidentally deleted files (remember it will not recover a file u deleted using file shredder)
File Encrypter and Decrypter
Duplicate Files Finder and Empty Folders Finder
File Splitter and Joiner
Internet Explorer Assistant - Manages Internet Explorer Add-ons and restores hijacked settings
you can get a Free Glary Utilities Pro license worth $39.95 from here