There are lot of free and paid system maintenance tools available,System Tweaks is free system maintenance tool offers lot of tweaks to optimize your system, get rid of junk files, customize system settings and protects your privacy .
To apply some tweaks to Windows those optimizes and improves performance we need to edit registry or use Group Policy Editor but without using group policy editor or without need to modifying registry manually with System Tweaks we can select and apply tweaks easily.
Customize section offers various tweaks to apply for Start Menu,desktop, and to Windows Explorer.
Maintain section offers performance tweaks tweak visual effects for best performance,Speed Optimizer similar to Game Booster shuts down unnecessary services for gaming needs with simple click Go button.
Clean section allows to clean cookies and other temporary and junk files.
Protection section offers system protector that scans for viruses and displays if found.
Utilities section offers Process Explorer ,Virtual Drive to create virtual drives ,Batch copy to copy, move and delete files from a specific location.
System Tweaks is freeware, works in Windows XP/Vista/7.