Boot Camp partition can take up a significant amount of space on your primary drive. If you are not using Windows, you can delete the partition. we show you how to remove the Boot Camp partition from your Mac.
Step 1: Back up any needed data stored on the Windows 10 partition.
Step 2: Launch Boot Camp Assistant, which is found in the Other folder when opening Launchpad or the Utilities folder under Applications in Finder.
Step 3: Click Continue.
Step 4: Click Restore to remove the Windows partition and restore the disk to a single-partition volume for macOS. The restore process, depending on the size of the partition and drive, may take a few minutes.
Step 5: Click Quit once the restore process is complete. You can now confirm via Disk Utility that the Boot Camp partition has been removed.