If you configured an EFI Firmware Password that will preclude recovery, unless you know that password.It will not work in the following circumstances: There may be other techniques to recover from the "impossible" circumstance in which you find yourself, but the following is one that I have successfully used in the past. Of course that is not supposed to be possible, but if that really is the case you can use the following technique to create a new, temporary Administrator account, the sole purpose of which will be to log in as an Administrator that can give your normal account Admin privileges. Then: Read and follow the instructions below with care.Īs I understand it, you have a Mac with no Administrator accounts.
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To learn how to use Time Machine please read Use Time Machine to back up or restore your Mac - Apple Support. Then, please make sure you have a reliable backup in the event something unexpected occurs.
" then you won't be able to fix it and you might as well stop reading. If it says "FileVault is turned on for the disk. If you don't know, open System Preferences > Security & Privacy > FileVault. If you have questions please reply to this Discussion, not that one.įirst please tell me that you have not enabled FileVault. It seems to me that it should work just as well I simply haven't tried it. There is another technique described in the following Discussion: Re: Lost Administrator Access. It is also overly conservative, but I have used it myself recently and I know it will work. It's very easy and will only take a few moments. Don't be put off by the length of the instructions. writing down the steps or trying to repeat it from memory. Tried to rename the user account on the new imac and lost admin privileges.
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