The Apple Support Community will permanently close on November 20, 2026. Starting today, the site will no longer accept new posts and is available in a read-only state.
You can continue to find trusted guidance and support on the official Apple Support site.
We want to thank the community members who have contributed their time and expertise to help others with their Apple products.
The Apple Support Community will permanently close on November 20, 2026. Starting today, the site will no longer accept new posts and is available in a read-only state.
You can continue to find trusted guidance and support on the official Apple Support site.
We want to thank the community members who have contributed their time and expertise to help others with their Apple products.
Unfortunately macOS monterey says its unable to install on macintosh HD is there a reason for this?
MacBook Air 13″, macOS 10.14
Is your Mac model compatible with Monterey?
macOS Monterey is compatible with these computers - Apple Support
Is the user Profile accurate MacBook Air 13″, macOS 10.14 Mojave ?
Is the Internal Drive still running on the old HFS Journal Drive format ?
Is the Internal Drive an After Market Drive and not an Original Apple Drive ?
There are reports appearing on the ASC Forums regarding failed installation of Monterey on older Qualifying Apple Computers. In most cases this is related to having a NON Apple Original Internal Drive ?
The EFI Boot ROM included in Monterey is verifying for Original Apple Drive and if not found , may Balk or fail to upgrade to Monterey.
Reports indicate the EFI BOOT ROM is Required to Flash the Computer and is a requirement for a Successful Monterey Installation.
Unfortunately macOS monterey says its unable to install on macintosh HD is there a reason for this?
