You can make a difference in the Apple Support Community!

When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

Converting Monterey to APFS

I have a 2015 MBP with a SSD and Monterey with HFS format. How do I covert it to APFS? When using disk utility “convert to APFS” is greyed out. Right clicking does not make it accessible. Please help.


MacBook Pro 15″, macOS 10.14

Posted on Jan 6, 2022 6:09 AM

Reply
Question marked as Top-ranking reply

Posted on Jan 6, 2022 6:55 AM

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.


The workaround is to replace the After Market Drive with an Apple Original then run the Monterey upGrade to the computer. Then, reverse this action by removing the Apple Original Drive for the Samsung Drive and run the Monterey upGrade again.


Because the EFI Boot ROM has been applied to the computer - this may allow the upGrade of Monterey to Samsung Drive to be successful.

3 replies
Question marked as Top-ranking reply

Jan 6, 2022 6:55 AM in response to 4thlife

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.


The workaround is to replace the After Market Drive with an Apple Original then run the Monterey upGrade to the computer. Then, reverse this action by removing the Apple Original Drive for the Samsung Drive and run the Monterey upGrade again.


Because the EFI Boot ROM has been applied to the computer - this may allow the upGrade of Monterey to Samsung Drive to be successful.

Converting Monterey to APFS

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.