Step 4: Click on Apply, then on Partition. After that, click BOOTCAMP and again remove. Step 3: Now, hit OSXRESERVED and then remove (-). Step 2: Click the Partition button in the toolbar and then click Partition in case Disk Utility prompts you to partition your Mac. Step 1: Launch Disk Utility from the Applications > Utilities folder on your Mac and then, in the side panel, select your Mac startup disk. If Boot Camp alerts you to a partition problem with startup disk while installing Windows 10, then you can follow our guide below. Fix 2: The Startup Disk Can not Be Partitioned Step 4: Now, download the ISO file for the latest Windows 10 and start install it on your Mac with Boot Camp. Notice: Back in June, Apple released a new macOS Mojave 10.14.5 Boot Camp Update, which addressed a bug that prevents Boot Camp from creating a partition on iMac or Mac mini with Fusion Drive. Step 3: If you are trying to install Windows 10 on a Mac with Fusion Drive, then download and install macOS Mojave 10.14.5 Boot Camp Update. Keep in mind a new software update usually includes bug fixes, so make sure you are up-to-date.

Step 2: Once you are done, you can install the latest updates for macOS. To do this, press Option+ Command+ Escape (Esc) and select the app from the list of all apps. Step 1: If you are now in Boot Camp Assistant, but it is not working, then force quit the app. Many users have reported that they get a message saying that Boot Camp installation failed, and the message appears when attempting to copy the installation files required for Windows. If you are one of those who are affected by one of the above issues, we have possible fixes for you. We have heard some of the issues Mac users are facing with Boot Camp while installing Windows 10, from installation errors, file system errors to ISO files not mounting and startup disk partition failed. However, Boot Camp has its own problems and sometimes it is not working well at all. Basically, Boot Camp comes pre-installed on your Mac, allowing you to quickly install Windows and then lets you dual-boot between Mac and Windows when the Mac starts up, eliminating the need for virtualization and emulation, so you can get the best possible Windows speed on a Mac. 28, 2018īoot Camp is the best-known app on Mac for running Windows 10 as a second boot.

Reinstalling windows on bootcamp