When attempting to create a Windows partition, Boot Camp Assistant might show the alert ”Your disk could not be partitioned. An error occurred while partitioning the disk. Please run First Aid from within Disk Utility to check and fix the error.”

• Boot Camp Partition Size
• Mac Boot Camp Can't Under Partition Full
• Mac Boot Camp Can't Under Partition Song

Consider running Boot Camp under virtualization. Both Parallels Desktop for Mac and VMware Fusion allow you to import your Boot Camp partition into one of their virtual machines. Once you do this. Right-click in Windows with Boot Camp on Mac. In Windows on your Mac, you can do a secondary click, or right-click, using an Apple Mouse, Magic Mouse, or trackpad. Apple Mouse or Magic Mouse: Click the upper-right corner of the mouse. Trackpad: See Set trackpad options in Windows with Boot Camp. Mar 16, 2018  Access Mac HFS+ Partitions From Windows. Apple’s Boot Camp driver package automatically installs an HFS+ driver for Windows, which allows Windows to see your Mac partition. This partition shows up as “Macintosh HD” under Computer on your Windows system. There’s a big limitation here, though — the driver is read-only.

Use Disk Utility to check for errors

Sep 30, 2012  After Installing 7 w/ Boot Camp, can't access Mac Partition. Thread starter BluAffiliate; Start date Jan. BootCamp changes the startup disk to the Windows partition to help with the install of Windows but does not change it back. That way the default startup is Mac OS and if you want to boot into Windows just hold the alt key and choose.

1. Install the latest macOS updates.
   
2. Use Disk Utility to repair your startup disk.
3. If Disk Utility found no errors or repaired all errors, try again to use Boot Camp Assistant to install Windows.
4. If Boot Camp Assistant still gives the partitioning error, continue to the steps below.

Here is stated that 'Apple’s Boot Camp driver package automatically installs an HFS+ driver for Windows, which allows Windows to see your Mac partition. This partition shows up as “Macintosh HD” under Computer on your Windows system.' But I don't see this partition. Jan 14, 2016  Tried to delete bootcamp partition via boot camp assistant and there was no option to do so. So I tried to delete partition with disk utility but can't delet. The Boot Camp assistant can't modify the partition map and shrink such a LVG to free up some unallocated space for a Windows installation on a hard disk. The only possibility (we found) to solve the problem is a complete reinstall: Backup all your data Disconnect all external hard drives.

Check for unallocated free space

1. Open Disk Utility, which is in the Utilities folder of your Applications folder.
2. In the Disk Utility sidebar, select the name of your internal disk, container, or volume, such as Macintosh HD.
3. Click Partition in the toolbar.
4. If you see a message about Apple File System space sharing, click Partition to confirm that you want to partition instead of add a volume.
5. If the pie chart shows a section labeled ”Free space,” click to select it. ”Free space” should now also appear in the Partition Information shown on the right.
   
6. After selecting the ”Free space” section of the chart, click the remove (–) button beneath the chart. Removing this unallocated free space makes that space available for your use again. Then click Apply and quit Disk Utility.
7. Try again to use Boot Camp Assistant to install Windows.
8. If Boot Camp Assistant still gives the same partitioning error, continue to the steps below.

Turn off Time Machine temporarily

Boot Camp Partition Size

If you use Time Machine with macOS Mojave or High Sierra, either upgrade to macOS Catalina 10.5 or later, or follow these steps:

1. Open Time Machine preferences from the Time Machine menu in the menu bar. Or choose Apple menu  > System Preferences, then click Time Machine.
2. Deselect ”Back Up Automatically” to turn off Time Machine.
3. Wait a few minutes, then try again to use Boot Camp Assistant to install Windows.
4. After installation is complete, you can turn on Time Machine again.

Mac Boot Camp Can't Under Partition Full

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Mac Boot Camp Can't Under Partition Song

Learn what to do if Boot Camp Assistant stops responding or says that Boot Camp installation failed.