I'm having a problem when I try to get into macOS Utilities. When I hold CMD + R it shows me a prohibited symbol. I'm trying to downgrade my MacBook because its running very slow. Currently I have Mojave installed and I want to donwgrade it to High Sierra. Before I installed Mojave everything was fine. I could go to the utilities without any problem. it happened after I installed it and can't access the utilities.

About my Mac: macOS Mojave Version 10.14.6 Macbook (13-inch, Aluminum, Late 2008) Processor 2 GHz Intel Core 2 Duo Memory 4 GB 1067 Mhz DDR3 Graphics NVIDIA GeForce 9400M 256 MB

  • 1
    Sounds like it doesn't have a recovery volume. Post the result of a 'diskutil list'. Jun 29, 2020 at 15:22
  • Mojave does not support the 2008 MacBook. How did you install it? The latest OS that supports your Mac is 10.11 El Capitan.
    – benwiggy
    Jun 29, 2020 at 18:14
  • I followed a dosdude1 tutorial on how to install Mojave on unsupported Mac. diskutil list: #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *240.1 GB disk0 1: EFI EFI 209.7 MB disk0s1 2: Apple_HFS oofiegang 239.2 GB disk0s2 3: Apple_Boot Recovery HD 650.0 MB disk0s3
    – user380873
    Jun 30, 2020 at 9:40
  • I wouldn't mind installing El Capitan if that makes it easier.
    – user380873
    Jun 30, 2020 at 10:58
  • Have you tried booting into Internet Recovery using Command+Option+R? Also, you can usually access your old downloads of OS's from the App Store listed with your previously purchased apps. Mar 7, 2021 at 6:14

1 Answer 1


Since Mojave isn't officially supported the recovery partition might be missing.

An alternate way to access the utilities without the CMD+R is to create an install usb. To do this first pick which version you want.

  1. Download image. Downloads can be found at this apple page
  2. Find a 16GB usb flash drive to put the image on (back up all data from it because it will be erased).
  3. Create the usb. You can find the right commands here.
  4. Boot off of the usb by holding down option when pressing the power button.
  5. Access any utilities needed.

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .