# Uninstalling OpenCore

To remove OpenCore:

  1. Remove OpenCore either from the USB or internal drive
  • You'll need to mount the drive's EFI partition, and delete the EFI/OC and System folders
  1. Reset NVRAM (opens new window)

Note that if you are on Big Sur when you remove the EFI folder, your Mac will no longer boot and show the "prohibited" symbol. Be ready to install an older version of macOS before you uninstall OpenCore.