LeHaM - many of these tweaks you're posting, if not all, are available using a handy little application called: Ultimate Windows Tweaker v2.1
You can get it at.
www.thewindowsclub.com
or click here:
Ultimate Windows Tweaker, a Tweak UI for Windows 7 & Vista
It saves the end-user from having to write all those registry entries in notepad and it's a free-standing application.
No install is necessary.
We are pleased to release our Ultimate Windows Tweaker v 2.0 for
Windows 7 and Windows
Vista.
Ultimate Windows Tweaker is a freeware TweakUI Utility for tweaking and optimizing Windows 7 & Windows Vista, 32-bit & 64-bit. It can simply be downloaded and used as a portable application to customize your Windows to meet your requirements. With judicious tweaking, it can make your system faster, more stable, and more secure with just a few mouse clicks.
The tweaker detects whether you have Windows 7 or Windows Vista installed and accordingly offers you the relevant tweaks only.
UPDATE: 12.12.09 – The latest version is
Ultimate Windows Tweaker v 2.1. It includes bug-fixes and may be downloaded from the link mentioned below.

The tweaker is a 345KB .exe file which does not require an install, but yet packs over 150 tweaks & settings. Simply download the zip file, extract its contents and run
Ultimate Windows Tweaker. Please don’t detach
Empty Icon from executable’s root, the Empty Icon is copied to system directory and referred in runtime. The tweaker has been designed by my MVP collegue
Ramesh Kumar for
The Windows Club.