Many people who use a Mac also have a need to run programs that only work in a Windows environment. While there are a few virtual machine solutions for this, you’ll get the best performance when you install Windows using Apples BootCamp software. If you’re like me, you’ll eventually find you need to alter the size of your Windows partition. Either making it smaller, or larger depending on your needs. The problem with this is, to repartition BootCamp, you need to erase the partition and start over from scratch. This means you have to reinstall Windows and all your software again.
I am going to walk you through the process of changing the partition size without having to reinstall Windows or any of your software again.
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The first thing you’ll need is a copy of Winclone. You can download it here.
After selecting your destination and clicking on the OK button, Winclone will unmount your BootCamp drive and begin the process of making your image. When it is finished, click OK. We are done with Winclone for now.
Now open up BootCamp assistant, located in your Utilities folder found inside the Applications folder on your hard drive. Make sure the “Create or remove a Windows partition” is selected and click OK.
After it repartitions your drive, if the program closed itself, go ahead and open it again. Select the “Create or remove Windows partition” option again. Use the slider to select the new size for your BootCamp partition.
After BootCamp Assistant closes, make sure the drive that contains the Winclone image file is mounted, (if you used an external drive), and open Winclone again. This time, click the “Restore” button and browse to and select the Winclone image.
After making your selection, click the “Restore” button. Once the process finishes, close Winclone. We’re done.
You can now restart your Mac into Windows again, and your Windows and all your programs and data will be just as you left it, only on a different sized partition.
ottermann is an Apple Certified Macintosh Technician. He has been working with and repairing Macs for 11 years. If you have any questions about your Mac you would liked answered, you can leave your question in a reply, or email him at: ottermann at smellytoast dot com.