how to uninstall PT LE for installation of Pro Tools 10

[R3D3]

Hi,

I have Pro Tools 8 LE with Mbox2 Mini on Windows 7 64 bit.
Now I want to install the demo of Pro Tools 10 to check if it works on my pc.

But when I run the installer it says: "setup detected older version of Pro Tools Drivers" and closes.

So I deinstalled Pro Tool several times now in different ways, using Pro Tools LE install disk and the deinstallation option in windows control panel with all kind of settings.
The Pro Tools 10 installer still states the error above.

So how do I remove my old Pro Tools version completely? What Files is Pro Tools 10 referring to?

thx for any help

[R3D3]

I got it.
There was something like "Avid Driver 64" in the list of functions and programs. After removing that, I could install without problems.