How can I manually uninstall .NET Framework Beta 2?

Uninstalled VS2010 Beta 2. Uninstalled .NET Framework 4 Extended Beta 2.

On attempting to uninstall .NET Framework 4 Client Profile Beta 2. I get

Blocking Issues: You must uninstall the .NET Framework 4 Extended Beta 2 before you uninstall the .NET Framework 4 Client Profile Beta 2.

On attempting to reinstall Framework 4 Beta 2 I get:

Details: Same or higher version of .NET Framework 4 Beta 2 has already been installed on this computer.

Please help!

Can I simply remove registry entries and the C:\WINDOWS\Microsoft.NET\Framework\v4.0.21006 directory?

• Delete all keys under: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4
• Install http://www.microsoft.com/downloads/details.aspx?familyid=DED875C8-FE5E-4CC9-B973-2171B61FE982&displaylang=en
  • First install crashes.
  • Reboot.
  • Second required repair.
  • Reboot.
  • Third completed.
  • Reboot.
• Uninstall .NET Framework 4 Extended Beta 2.
• Reboot.
• Uninstall .NET Framework 4 Client Profile Beta 2.

• Reboot.

• Try to convince boss you're a valuable member of his team.