Super User is a question and answer site for computer enthusiasts and power users. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

How do you increase the size of a Boot Camp partition?

share|improve this question
up vote 1 down vote accepted

Use iPartition. It makes a boot DVD you can use to repartition your drive. It supports repartitioning Boot Camp partitions. I've used it twice with no issues for this purpose.

A free solution is CampTune. I've never used it so YMMV.

share|improve this answer
Do you know if the demo would work to do this? – Mike Wills Dec 11 '09 at 20:48
Unfortunately, the demo only shows you how it would repartition the disk. Doesn't allow you to do anything. Maybe someone can think of a solution that doesn't require a third-party application. – fideli Dec 11 '09 at 21:53
Edited my post to include CampTune. – fideli Dec 12 '09 at 15:47
CampTune worked great for me. Thanks! – Mike Wills Dec 18 '09 at 17:40

This guy seems to have it all figured out:

Citing his blog:

To increase the size of your Windows partition use the following steps.

  1. Make a backup of your Boot Camp partition from Windows. (optional)
  2. Run Winclone.
  3. In Winclone create an “Image” to your Mac-formatted external hard drive.
  4. Use Boot Camp Assistant to return your drive to a 100% Mac-formatted partition.
  5. Use Boot Camp Assistant to make new Boot Camp partition larger than your original partition size.
  6. When it asks for Windows disk, quit Boot Camp Assistant.
  7. Run Winclone again and “Restore” your Windows image to the new partition.

I like his approach, because it just makes sense - is straightforward and seems like you could not do it any simpler. Also backing up your partition on an external hard drive is always good, in case something goes wrong.

If you follow his directions you will have two backups - a windows backup made by Windows and also a clone made by Winclone.

Besides WinClone he uses BootCamp assistant to create partitions and resize them, so you get as close to the original as possible.

share|improve this answer
Please provide some context for the link, including a description of the solution. If it's not too long then paraphrase here, or provide a recap of the process if it's incredibly long/complicated. – Andrew Lott Jun 27 '13 at 9:16

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .