How to Resize BootCamp Partition without Deleting it on my Mac computer?

Yes, it is absolutely possible to resize the bootcamp partition without deleting or removing it from your Mac computer. My answer will be applicable for MacBook Pro, iMac, Mac Mini etc. However, before I start let’s tell you something about it.

In Mac computers, Boot Camp is one of the helpful and dual boot feature which helps the user in creating a separate partition and further helps in running 2 different computer operating system on the same Mac machine.  This below solution is mainly used to create Windows partition on a Mac drive, so that you can get the opportunity to run even Windows OS while using Mac for plenty of purposes.

At times, initially created Boot Camp partition needs more space, therefore in order to enlarge the size people often format their boot camp drive and recreate it with more space. This process is actually recommended by Mac as Disk Utility can resize an HFS+ (Mac OS) partitions, but not capable enough to revise the size of NTFS based partitions.

However, it is not always necessary to format the full hard drive for resizing the Mac bootcamp partition. Instead you can choose to take image of your Windows Boot Camp partition and then simply restore it. This will preserve all the settings untouched. Below, you will look at steps to enlarge the size of your Windows Boot Camp partition on a Mac based hard disk drive or volume.

Free Available Solution to Resize BootCamp Partition:-

(1) First of all, you need to take the complete data backup of your Windows partition (use a third party tool for image your backup partition) and save it to the desktop computer for further use.

(2) Now, remove the pre existing or old Windows partition and resize the current Mac hard drive partition easily.

(3) Here, after a successful Mac computer partition, create a new Windows partition in free space and set the format to MS-DOS (FAT).

(4) In this step, you need to resize the Mac-boot camp partition according to your requirement using the help of Mac disk-utility and give a new name to this partition.

(5) Further, restart your Mac computer for a new Windows partition and restore the complete Windows data backup partition image you created over newly created Windows partition. (You can try some 3rd party tool to do this task for you more easily and securely)

(6) Finally, run the Mac OS startup disk and check both the partitions properly.

Alternate Solution to Resize BootCamp Partition without Facing Data Loss Problems:-

Although, the above discussed solution is capable enough to enlarge a Mac user Boot camp space, but still there are chances of complete Boot camp drive data loss in case you are unable to restore the image you created and certain other issues while using your Mac computer. Therefore, it is highly recommended to use some safe and reliable application that directly provides you the option to resize your bootcamp partition without facing any kind of data loss errors. You can either using TechSoftwareLogic this Mac hard drive partition manager software or iPartition tool to Resize your BootCamp partition without facing the important data loss problems keeps your data safe and secure.

You will run into problems trying to resize a partition. Do it the Apple recommended way, use Boot Camp Assistant to remove Windows then reinstall Windows using Boot Camp Assistant specifying the new partition size.

Remove Windows from your Mac using Boot Camp - Apple Support

Paragon HDM for Mac is supposed to be able to re-partition Boot Camp partitions but I don't know if it works. There is at least one other app that is supposed to but the name escapes me. FWIW, it's always dangerous to resize partitions that have data on them so good backups should be mandatory.