Free Resize Bootcamp Partition without Reinstalling Windows

March 2, 2017

Planning to resize Bootcamp partition to increase Bootcamp partition size running Windows on your Mac? How to solve? In this article, you will find the best way to resize your Bootcamp partition without losing data or reinstalling Windows.

What is Boot Camp Assistant and Bootcamp Partition?

Bootcamp partition is a NTFS partition for installing Microsoft Windows operating system on an Intel-based Macintosh computer. Why you want to install Windows on a Mac computer? If you want to install some applications that only work on Windows or just want to make it different from OS X something like that, it’s a good choice for you.

Why you need to create a new partition on your Mac? In a word, the Windows and the Mac works on different format. Mac runs on Mac OS X, and Windows runs on NTFS.

Speaking of Bootcamp partition, you have to know the Boot Camp Assistant. The Apple’s Boot Camp Assistant provides you three functions to run Windows on Mac, including help you to partition your Mac hard drive into 2 partitions (the Mac hard drive must be formatted as Mac OS Extended), install Windows device drivers for Apple hardware and allow you to select which operating system to boot.

Why Do You Need Resize your Bootcamp Partition?

After you create a NTFS Bootcamp partition using Boot Camp Assistant, you can install Windows on this Bootcamp partition. You may underestimate the size of the Bootcamp partition when you creating the partition for Windows. Thus, with your daily use, you would run out of the free space on Boot Camp partition. Like some users asked in the forum:

How can I resize my Bootcamp partition to make it larger without deleting it or reinstalling Windows?

So, how to resize Boot Camp partition without losing data in Windows 7/8/10? In this article, we will walk you through the details about resize NTFS Bootcamp partition.

Overview of Resize BootCamp Partition

Typically, you may turn to the Disk Utility for help to resize Mac partition, you can locate its location /Applications/Utilities. However, Disk Utility can’t expand or shrink the Bootcamp partition due to it’s a NTFS file system partition. So, it’s not an easy job to resize Bootcamp partition.

If you ask Apple for help, the solution could be backup your data on the Bootcamp partition, remove it, then create a new Bootcamp partition with the size you want and reinstall Windows. For vast majority of users, it’s not the ideal solution.

How to Free Increase/Shrink Bootcamp Partition without Reinstalling Windows?

AOMEI Partition Assistant Standard is a free yet professional software to resize the Bootcamp partition without losing data or deleting Windows. The instructions listed below as you can see. To resize BootCamp partition in Windows 10/8/7, there are two ways: increase Bootcamp partition size, and decrease Bootcamp partition size.

Learn how to increase Bootcamp partition size, follow these steps:

1. Backup your valuable files or documents in case of data loss.

2. Release some unallocated space for Bootcamp partition from other Mac partitions with Mac Disk Utility.

3. Set the Bootcamp as the boot disk, restart the Mac computer.

4. Free download AOMEI Partition Assistant Standard, install it on your Windows, and launch it to enter its main interface.

5. Right click the Bootcamp partition and choose Resize Partition. Or click Bootcamp partition and select Resize Partition at the left column.

Resize Partition

6. Drag the double-arrow rightward to increase Bootcamp partition size with an unallocated space as you want. Click OK to go on.

Edit Partition Size

Tips: Drag the double-arrow leftward will shrink the Bootcamp partition if you would like to.

7. Press Apply to expand the Bootcamp partition.

Apply

The steps to Shrink Bootcamp partition is basically the same as the steps of increase Bootcamp partition.

At this moment, with the help of AOMEI Partition Assistant Standard, you can resize Bootcamp partition without reinstalling Windows or losing data in Windows 7/8/10. In addition, AOMEI Partition Assistant Standard permits you to merge partitions, split Windows partition, extend system partition, set active partition, etc. AOMEI Partition Assistant Professional allows you allocate free space from one to the other, migrate OS to SSD, covert primary partition to logical, and more.