Can't use Bootcamp.

Every time I click on bootcamp assistant, it says "You must update your computer's Boot ROM firmware before using this setup assistant".

I took it that I obviously needed to do a software update, but nothing was available. I looked on the Apple website for downloads, downloaded a couple of random updates to do with firmware but it said "Your computer does not need this update".

I'm currently using the 21.5inch iMac (iMac 10,1) and my boot rom software is IM101.00CC.B00.

Does anyone know how to fix the problem? I just want to install Windows via bootcamp.

That is a strange one. Let me search around and get back to you. Not seen this as yet.

One person had success after Zapping the PRAM.

I'm running OSX 10.6.7

https://discussions.apple.com/thread/1325098?threadID=1325098

Be SURE your Macs Hard Drive is formatted in Journaled format!!! People are getting that message if that is not the case.

Zapping the PRAM? Sounds scary to me haha how do you do that?

And it is formatted in Journaled.

PRAM is the Parameter RAM. Not sure if that will solve it, but it did for some. You boot holding down the Command+Option+P+R Keys right after the Startup Sound and keep them down (all 4) till you hear at least one other Startup Sound.

If that does not work, do you have more than one partition already on your main hard drive? That gave your message for another user.

Thank you, that worked! Bootcamp has opened, I'll try and install my windows on it in a second

That seemed to speed up my booting time too, it had been very slow recently!

Great to hear. Let us know how your Windows install goes. If you have any more issues, be sure to ask in this thread!

My windows install has gone fine. Thank you for your help