My computer crashed during the install of a Inventor 10. The install disk
wont let me install again because it thinks the program is installed
already.I cant uninstall because it does not show up in the "add/remove"
preference like it should due to crash. There are traces of the install in
the registry and programs folder.

So I figure the quickest way to solve is to restore to a point I set a few
days before the install. When I select the restore point it restarts and then
tells me it could not restore. The install of the programs show up on the
calendar of the SR so I know it realizes something was installed. It
installed 2 programs, Inventor and Microsoft WSE 2.0 Runtime.

What can I do???