AD and AD2 Reload!

Good day to all.
I'm having a bit of problem re loading AD after major computer flush. Everything loads but install is stopped due to 'AD 64 and AD 32 share same path' error. Is there a way to eliminate the 32 version since I run a 64 machine. Side note. NEVER change the name of your computer. The id needed for some software is in the name. Thanks to all. If no answer, I know I'll stumble onto the answer eventually. 
jj