I was more than a little surprised when I uninstalled RC2 on one
Windows XP machine just now.
It said that a raft of Security Updates for Windows XP, Firefox 2.0
and MSXML 6.0 might not run properly if I unnstalled PowerShell RC2.
(I took a screenshot if anybody in MS wants to see it)
It doesn't inspire confidence if PowerShell uninstall hints that
Windows Security Updates may not work if RC2 is uninstalled.
BTW it also insisted that I needed to restart Windows ...
was unexpected and unwelcome. I don't recall that happening on
previous PowerShell uninstalls.
Andrew Watt MVP