If you install MDT 2010 on a virtual machine running folder redirection, the setup might stall and never finish…
It looks like this:
The workaround, run the setup with the /passive switch, looks like this
msiexec.exe /i MicrosoftDeploymentToolkit2010_x86.msi /passive
or
msiexec.exe /i MicrosoftDeploymentToolkit2010_x64.msi /passive
/ Johan