Here is a tremendous source of registry hacks.
This gus really has gathered allot of information about how to change the inner core of a windows installation.
Tweaking with Vishal is a great way to change just about anything in any windows machine..

Microsoft Most Valuable Professional (MVP) Award:

Vishal Gupta has been awarded with Microsoft MVP award.
Microsoft MVP Award recognizes exceptional technical community leaders from around the world who voluntarily share their high quality, real world expertise with others.
Microsoft MVP is a highly selected expert representing technology's best and brightest who shares a deep commitment to community and a willingness to help others.

Mainsite: Link here!
Tweak Windows XP: Link here!
Tweak Windows Vista: Link here!
Tweak Windows 7: Link here!
Tweak Windows 8: Link here!
Troubleshooting: Link here!