Bootcamp Partitioning :: iDefrag is the answer
Hello,
So I was having the same issues, not being able to partition my drive. I read through every single instance on this Forumn and they were all very helpful.
The fact that you removed Parallels and it worked for you? Well, you just got lucky, that really isn't the answer as I removed all instances of mine and that didn't help.
The only answer is to download iDefrag, or buy it, and create the DVD boot rom. Reboot your computer, hold down the C key, and let iDefrag do it's work. Let it defrag your whole machine, and reboot int OS X and partition your drive with Boot Camp.
Worked like a charm!
iDefrag rocks, really it does. I think any mac book pro user should have a copy and defrag your drive every few months.
regards,
chris vandebrooke