This is how I would do it, I would take the entire EQ folder and move it to another location. Make a folder and call EQ_live, and drop all the files from your live install to there.
Now you can run the install and remove that first copy, because you backed it up right? Just run the install again and you will have a clean titanium. You can also do this by changing registry values, but not going to go that route
Hopes this helps
~LL~