Hello,
How did it "screw up"? Did you then literally try to
delete it?Or did you run through the uninstallation
routine?
If the latter is applicable,ensure that any residual
files left behind by PCcillin are deleted manually.
You could also try cleaning the registry of any entries
left behind,once you are sure the old installation is
completely gone.
You can download a 30 day fully functional trial version
of RegSupreme from macecraft.com or majorgeeks.com.Set it
to run in "deep scan" mode.Do not be surprised if
thousands of dead entries appear if you have never
cleaned the registry before.
Apologies for not supplying the exact URLs.
Then re-try the fresh installation.
Good Luck,
Sadie