How can I change boot camp partition size?

I run windows via boot camp on my MacBook pro. Running out of memory on the book camp partition. I'd like to allocate more space to this partition, but it doesn't seem like you can simply adjust the partition size. Is there a simple way to do this?

MacBook Pro, iOS 5.1.1

Posted on Sep 3, 2012 10:55 AM

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3 replies

Sep 3, 2012 11:11 AM in response to Petefromtn

Windows lacs the ability to allocate and partition disk space like a mac. In order to add space to the drive you are using on windows, you must back up your windows partition to an external drive, delete the partition and create a bigger one. I would recomend a program such as Parallels Desktop 7 for mac wich allows you to run Mac and Windows at the same time as well as using the same disk partition. Therefore, nor rebooting, and no running out of windows partition space. It is literally running windows like an application inside of Mac OS X. I have the program, and I am very pleased with it. You can set how many CPU cores and Ram the Windows partition is even allowed to use. Also, Coherence mode allows you to run the two system together. See Below.

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Sep 3, 2012 11:11 AM in response to MacMan240

MacMan240 wrote:


Windows lacs the ability to allocate and partition disk space like a mac. In order to add space to drive you are using on windows, you must back up our windows partition to an external drive, delete the partition and create a bigger one.

That is Not correct. Windows Disk Management can do this on a Real Windows computer. And if Disk Management can't there are many Disk Partitioning program that can. It is how Apple sets up the Boot Camp partition that stops Windows from doing this. At least stop it if you want either of your operating system to work after you try to do it in Windows.


Not even Disk Utility can do this on a OS X partition.

Sep 3, 2012 3:04 PM in response to Petefromtn

Paragon CampTune

Paragon CampTune is a commercial product that is designed expressly for this task. http://www.paragon-software.com/home/camptune/ It consists of a downloadable ISO that needs to be burned to a disc and booted from in order to resize the partitions costs US$19.95.

Securing Dual-System Configuration

Imaging is still the most affordable and robust way to secure computer data. Unfortunately Mac OS X backs up only HFS+ volumes, leaving Windows with dual-system configurations unsecured. You can permanently lose all of your data unless you have a Windows-compatible backup solution.

Paragon’s CampTune and Paragon’s Drive Copy for Mac can secure the entire dual-system configuration. CampTune creates traditional images of volumes or entire hard disks, Drive Copy can copy them to other disks. In case of an emergency, you can restore the previously created image or copy all your data back to its original state.

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How can I change boot camp partition size?

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