Make sure to check the date and time set on their machine, and ensure their computer is not losing it somehow (by way of dead CMOS battery or otherwise). Boot Camp will add a partition on-the-fly to your system drive, but there are some things that can stand in the way of that process. AppleInsider explains how to fix most of the issues preventing. Bootcamp - 'the installer disc could not be found' I'm running a late 2011 macbook pro 13 in. Running Catalina with the dosdude tool. I'm trying to download windows 10 - I have the iso, pretty sure its mounted. The Bootcamp Windows Support Software should be on the Windows 10 installer USB you created earlier. Open Windows Explorer and go to the USB drive Unless you renamed the folder, open WindowsSupport - Bootcamp - setup.exe. This will install all the required drivers and the bootcamp utility for Windows. Due to the fact that you have downloaded and setup Bootcamp, then after you click Restart, it should show you a pop-up, giving you the option to “Restart in Windows”. If, for any reason, that does not work, then you can do this in reverse; you restart, all the while holding the “option” key, until you see the partition key.

1. Bootcamp Installer Disc Could Not Be Found
2. Bootcamp Installer Disc Could Not Be Found Iso
3. The Installer Disc Could Not Be Found High Sierra Bootcamp

Bootcamp Installer Disc Could Not Be Found

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.”

Use Disk Utility to check for errors

Bootcamp Installer Disc Could Not Be Found Iso

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.

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

If you use Time Machine with macOS Mojave or High Sierra, either upgrade to macOS Catalina 10.15 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.

Learn more

The Installer Disc Could Not Be Found High Sierra Bootcamp

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