Please read the red-letter text on GetReady (same page and just above the
download and order the dvd links):
From
http://www.microsoft.com/windowsvista/getready/preview.mspx
"Note: This is beta code and should not be used in a production environment
or on a main machine in the home. Beta 2 is intended for developers, IT
professionals and technology experts to continue or begin their testing of
Windows Vista. Before you decide to use Beta 2, you should feel comfortable
with installing operating systems, updating drivers, and general PC
troubleshooting. Some risks of using beta operating systems include hardware
and software incompatibility and system instability. If you have concerns
about installing this beta software on your computer, we encourage you to
obtain the final release version of Windows Vista when it is available in
2007."
On the system requirements page it also says:
"In addition, once you install Windows Vista Beta 2 (or RC1) you cannot roll
back to the previous operating system installation-you will either have to
acquire and install the final released edition of Windows Vista or reinstall
a previous edition of Windows. Before installing Windows Vista Beta 2 on any
computer, please remember to back up all your files."