Boot Camp is a very useful macOS tool that can help you install and use Microsoft Windows on your Mac. Several users have reported that they are receiving.
Are you trying to partition your hard drive to install Windows using Boot Camp on a Mac? Can’t get it done manually with Disk Utility either? You’re not alone. It is a common problem that many Mac users have experienced.
Fortunately, the error is fairly straightforward to address. If you see ‘Your disk could not be partitioned’ in Boot Camp, this is how to fix it.Also see our articleRunning multiple operating systems on a single machine is a great way to play around with other OS, use OS-specific programs and experiment without having to buy a different computer. I have a Windows machine that runs Hackintosh and a Mac that runs Windows 10 in Bootcamp. I get to experiment with each OS and can simulate errors my computer repair clients experience so I can fix their problems faster.Boot CampOnce Mac became Intel-based, the option to boot multiple operating systems became a reality. The same processor architecture meant that the differences between Mac OS X and Windows could be emulated in software, making each accessible to the other even though they work completely differently.Boot Camp is Apple’s program that enables you to dual boot your Mac with Windows. It creates a separate partition and a bootloader that will prompt you to select an operating system when you hold down the Option key as you boot your Mac.
Most of the time it works seamlessly, sometimes it does throw up an error like ‘Your disk could not be partitioned’. Your disk could not be partitionedThe only times I have seen ‘Your disk could not be partitioned’ errors have been on older Macs that have been in use for a while. I have not seen it on newer Macs or recently unboxed ones. This leads me to believe that the message is caused by some kind of error in the file system. It seems serious enough to prevent partitioning but not serious enough to affect normal operation.Whatever the cause, the fix is fairly straightforward.
There are two stages to this fix. The first step will address the error in many situations. If it doesn’t fix it for you, try the second. Backup your Mac as appropriate in case anything bad happens.
Then:. Launch Disk Utility from Utilities. Select your drive from the left and select Verify Disk. Allow the disk to be checked for errors and select Repair Disk if the utility finds any. Reboot and retry Boot Camp.If the verification finds no errors or fixes them but you still see ‘Your disk could not be partitioned’, try the next fix. Shut down your Mac.
Turn it on again and hold down Command + S to access Single User Mode. Open a command prompt, type ‘/sbin/fsck-fy’ and hit Enter. Allow the process to complete. Type ‘reboot’ and hit Enter. Run Disk Utility again and allow the process to complete. Retry Boot Camp.This second step is also an error check but on a deeper level.
If that first fix doesn’t work this definitely should.Using Boot Camp to dual boot with WindowsIf you want to dual boot Mac OS X with Windows, you can use the built-in Boot Camp to partition your drive ready for the install. You will need a legit copy of Windows to install but the rest is all contained within OS X. Here is how to set up Windows on a Mac. Navigate to Utilities and select Boot Camp Assistant.
Select Continue within the Assistant and select ‘Download the Windows support software for this Mac’ if prompted. Select Continue and enter your Apple ID if prompted. Select Enter to download and install everything you’ll need. Adjust the slider to size your new Windows partition when prompted to by the Boot Camp Assistant. Windows will need at least 20Gb to work well.
Select Partition to get things going. Install your Windows installation media once Boot Camp Assistant has completed the partition. Select Start Installation and your Mac will do just that. There may be a couple of reboots as part of the process. Select Custom installation when prompted and select the BOOTCAMP partition. Select Drive options and then Format to prepare the partition for Windows. Follow the Windows installation wizard as it prompts you for input.
Select the settings most appropriate for your needs. Once complete, remove the Windows installation media.Be very careful at Step 9 to select the correct partition to install Windows on. Make sure to select the partition you created earlier otherwise you may overwrite your MAC OS X installation. When I did it, Boot Camp Assistant named it BOOTCAMP. Yours may differ so choose carefully when it comes to selecting the correct partition.When you load Windows, it should update the drivers and itself as it would on a normal Windows computer. Now all you need do is hold down the Option key when you boot to access the boot loader to choose which OS to load!
I am stuck with a Boot Camp installation on a new Mac Pro.I have tried Windows 8.1 Pro, Windows 8.1 Enterprise, and Windows Server 2012 R2. (Can't try Windows 7, obviously.)All three give me this at the end of setup:Windows could not update the computer's boot configuration. Installation cannot proceed.I've tried letting the Boot Camp Assistant do everything, I've also followed the advice in several posts that suggest interrupting the process by booting back into Mac and using Disk Utility to format the Boot Camp partition as FAT, ExFAT, etc. All lead to the same error after rebooting to the USB drive and commencing with Windows setup.Windows finishes the installation, seemingly, but it just doesn't seem to be able to update the boot data.So, what's the trick?
How did other MacPro6,1 users get Boot Camp paved? Is this a firmware update I'm going to need to wait for?I tried support, it was a joke. Apple couldn't pass me off to Microsoft quick enough; and Microsoft couldn't pass me back to Apple quick enough. I think that's the most I've ever identified with a tennis ball. Finally got this working,:. Re-run Boot Camp Assistant to remove the Windows partition and restore the full Mac HD as a single partition.
Run a PRAM reset (restart, while screen is still black, hold down ⌘+ Option+ P+ R and keep them pressed until you hear the startup sound a second time). Open disk utility and repair permissions on the Macintosh HD partition. TWICE. Start Boot Camp Assistant again.Seems hokey.
With those instructions I thought I would also have to stand on one foot, point to my nose, rub my belly, and hope for rain. But it did end up working. I faced the same problem on my new 2018 15 inch MacBook Pro. None of the steps above helped me. However, while doing First Aid on Macintosh HD using Disk Utility, I noticed that I was getting the following error:'Warning: crypto: val object (oil:0x04): invalid state'.This was not going away, no matter how many times I did First Aid. While searching for a solution, I read (here: ) that one way to fix this issue is to reinstall MacOS.
Below are the steps that worked for me, in the exact order. Reboot machine and go to 'Internet Recovery Mode' (Press option + cmd + R while startup). Connect to internet, select Disk Utility and select Macintosh HD. Erase the drive using default options. (Warning: You will loose all data in your machine). Close the utility and go back to the starting screen and select 'Reinstall MacOS'. After installation (this will take some time) and minimal setup, download 64-bit Windows 10 iso from Microsoft website.
Reboot the machine, do a PRAM reset (Press option + cmd + P + R while startup). After booting up, open Disk Utility and do a First Aid. Confirm the error is no longer there. Open BootCamp Assistant and follow the normal procedure.The rest of the Windows 10 installation was smooth for me.
Hope this helps. After I read the above answer I decided to 'Think different'.I think, the PRAM reset is the solution.I had the same error installing Win10. After klicking the error message away my MacPro rebooted. I hold the ALT key to see my boot options.
In my boot options I had my Mac HD, the Recovery partion 10.11.3 and two partitions called Windows.I tried the third boot option (1. Windows) and after a short while my MacPro shut down.
I started it again, did the PRAM reset and held ALT key.This time I selected the fourth boot option (2. Windows) and the Windows setup restarted again. This time whitout any error messages.After some reboots Win10 was running on my MacPro 2013. I had the exact same issue.
I have tried beats all possible solution that I can come up with. I even tried with all listed solution in web forums. I even contacted many representative from the max support including couple of scenery percentage and none of them were able to give me a positive solution but I figured it out. It seems like the Windows version that I use at first place is oldee version and new bootcamp not compatible with it.
You need to use a Windows version anything not related then 2018 March. That’s all you had to do. It will work. Good Luck ??. Thats indeed the solution for the problem.But you have to do it in this order.
None of the other answers worked for me but I did succeed after a bunch of research.I installed Windows 10 on new MB Pro (summer 2018) with freshly-wiped hard drive and Mojave installed by restarting in Internet Recovery mode (OS X 10.14 build 18A391).My first install failed after entering the Windows key, using a build 1607 Windows ISO, with the following error: Windows could not update the computer's boot configuration. Installation cannot proceed.Some of what follows is certainly unnecessary.1. Delete the partitions from the failed attemptDoes not delete your files:.restart in recovery mode: restart while holding down cmd+R.in disk utility, click 'view' in the top left corner then 'Show All Devices'.click on 'Apple SSD.' Then 'Partition'.click on 'Boot Camp' then '-' to delete the partition, then 'Apply'.quit disk utility then restart from Apple Menu2. Download a current ISO from MicrosoftUsing the current (1803) build of Windows 10 may be the only part of all this that is necessary.I put the ISO in my home folder, having read that it shouldn't be in Downloads and not wanting it to be in iCloud.3. Disconnect all external devicesLike my USB key with the Windows 10 ISO4. Reset the SMCInstructions for touch bar MB Pro with T2, other Macs are different.I used my iPhone for a clock.
From shutdown:.press and hold power button for 10 seconds.release button, then wait 5 seconds.press the power button again to turn on Mac5. Reset the NVRAMInstructions for touch bar MB Pro with T2, other Macs are differentMacs no longer use PRAM. From shutdown:.press power button then immediately press and hold:option command P R.release the keys after about 20 seconds, during which the Mac might appear to restart (after the Apple logo appears and disappears for the second time)6. Rerun Boot Camp AssistantIt worked like a charm.