Take the 2-minute tour ×
Ask Different is a question and answer site for power users of Apple hardware and software. It's 100% free, no registration required.

I'm trying to install Windows 7 on my Mac. The Bootcamp Assistant won't let me increase the Windows partiton's size above ~45 GB. I've got 200 GB free out of 500 GB on my SSD.

I run Disk Repair, but that didn't help. Do I have to buy iDefrag and defrag my disk, or are there other options (besides reinstalling OS X from a backup)?

share|improve this question

1 Answer 1

I had the same issue, the problem for me was that the bootcamp manager only allowed me to take up space from allocated partitions.

Go into Disk Utility, select your 500GB SSD and select the "Partition" tab. Make sure that "Macintosh HD" is taking up all the 500GB.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.