ubun2^beta

I installed Purr, and now anytime I try to install a new package program near the end about 80% complete I get an error message saying it can not complete because of Purrr. I also get the same thing during upgrades. I tried uninstalling Purr, but can't because I get the same thing.

I am installing Linux on my hp. It is Windows Vista. It is home to all info, documents,everything. I want to install Linux without reformatting.