Remove the "Send Feedback" Link in Windows 7 Beta
 

One of the things our articles have always focused on is how to remove annoyances from your computer, and after installing the Windows 7 Beta we noticed the ugly Send Feedback link in the upper right-hand corner of every window, and found out how to disable it.

Note: before we get into how to disable this, you should think about whether you really want to do it. Keep in mind that this is a Beta version of Windows, and it's only YOUR feedback that is going to make Microsoft change or fix anything before the release, so you should be submitting as much feedback as you can.

HKEY_CURRENT_USER\Control Panel\Desktop
Once there, find the FeedbackToolEnabled key on the right-hand side, and change the value to 0.

http://www.howtogeek.com/howto/windo...indows-7-beta/