Padlock prevents Disk Recovery access.
I have purchased a used iMac 2019 running Big Sur. I decided to upgrade to Monterey but found the upgrade stuck during the installation process. I am unable to access Disk Recovery as my account passwords do not work. I read an earlier blog which suggested the previous owner may have not adequately cleaned the iMac sufficiently to eliminate his passwords.
The iMac has re-started and I believe the Installation process is stuck during the stage of Monterey being written onto the HDD. This suggests Big Sur will no longer function.
Does anyone have idea’s for a work around?
iMac 27″, macOS 11.6