Mar 05, 2012 If you have attempted to partition a drive from Mac OS X and received a “Partition failed” message with the error “Couldn’t modify partition map.

Have you ever met the same problem? Do you know how to effectively resize Bootcamp partition? Do you know how to change the size of Bootcamp partition without data loss? Command Line Switches For Adobe Flash Install. Free Locking Software For Pc. And, do you know whether there are free yet professional tools to help to extend or shrink Bootcamp partition?

Now, if you haven’t found a suitable solution, you could read this post to find answers. On the other hand, if you had solved this problem, you might also like this post since it offers effective yet free solutions. In general, when it comes to talking about resizing Bootcamp partition, some users would think of these following questions: what is Bootcamp partition, when need to change Bootcamp partition size, how to increase/ decrease Bootcamp partition effectively. Next, let's answer these problems in detail.

What Is Bootcamp Assistant is a multi boot utility included with Apple Inc.' S OS X that assists users in installing Microsoft Windows operating systems on Intel-based Macintosh computers. The utility guides users through non-destructive disk partitioning (including resizing of an existing HFS+ partition, if necessary) of their hard disk drive and installation of Windows device drivers for the Apple hardware.

The utility also installs a Windows Control Panel applet for selecting the boot operating system. In a word, Boot Camp can help partition your hard drive into 2 partitions. One partition will be used by your Mac to run Mac OS X and the other one will be used to run Windows OS. However, do you know why we have to make a new partition to install Windows?

Well the reason is that Windows and Mac don’t run on the same format. Mac runs on Mac OS X (Journaled), and Windows runs on NTFS. Partitioning splits your hard drive into 2 separate sections, each with its own format.

This means that you can run Windows OS on NTFS and run Mac on Mac OS X (Journaled) on the same hard drive. Of course, this NTFS partition is called Bootcamp partition which is used to install Windows. Tip: you can read to know details about installing Windows OS on Mac computer. When Need to Resize Bootcamp Partition You can firstly specific the size of Bootcamp partition, and then install Windows on it.

However, after running Windows, you may find that your Bootcamp partition is running out of space, and you need to increase its size to continue running Windows OS. A real-life example is shown here. Hi all, I use Windows primarily, and havent' booted into OS X in several years. However I'm quickly running out of space on my Bootcamp partition. Originally I split the space on the drive 50/50 between the two operating systems, but there is 97GB of free space on the OS X partition that I'd like to make use of. What accessible methods, software etc., would people recommend for accomplishing this without reinstalling Windows or losing data? I believe I can shrink my OS X partition from within Disk Utility, but I'm not sure where to go from there.