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  1. #1
    Time Machine problem?
    Willabong's Avatar
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    Time Machine problem?
    Bought a second hand 27" iMac late 2009 running High Sierra: My problem is that even though I have removed the old Admins details and replace them with my own, but when I tried to remove his Time Machine saved files I hit 2 problems: 1. The time machine backups were all in his name? 2. I want to use Time machine to do my own backups and remove all of his, but all I can do is copy the backup and it seems impossible to delete them?
    I can make new backups but they all carry the old admins name not mine?
    How do I delete All the Time Machine backups ad change the name of the backups folder to my name?

    I would appreciate any advice on doing this!

  2. #2
    Time Machine problem?
    Raz0rEdge's Avatar
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    When you get a used machine the FIRST thing you should do is erase the contents of the machine and re-install the OS. High Sierra is the latest version that will run on that 2009 iMac, so follow this link and go to Step 4 to grab the High Sierra installer from the Mac App Store. Then grab a copy of Diskmaker X and use that to create a USB installer for High Sierra. Keep this USB drive handy, we will try the quicker recovery option first and fall back to the USB drive if things go awry.

    Reboot the machine and hold down CMD+r until you get into the recovery console, then use Disk Utility and erase the HD contents. Then you can do a Internet re-installation of High Sierra. Once completed, go ahead and set up the machine as yours and everything (time machine backups and all) will be just for you.
    --
    Regards
    ...Ashwin


  3. #3
    Time Machine problem?
    Willabong's Avatar
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    I understand where you are coming from RazOrEdge but I now have this iMac running the way I want it with my own software and email/internet all setup, the only problem is the one mentioned in my first post! I don't want to go through a re-installation process that I am not familiar with just to sort out one blip! There must be a simpler way of correcting this? (I hope).

  4. #4
    Time Machine problem?
    MacInWin's Avatar
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    It won't be "one blip" but a continuous string of blips. Sooner or later you will need to do a clean reinstall and the best time for that is now, before you get too far into configuring even more software on it.
    Jake

  5. #5
    Time Machine problem?
    ferrarr's Avatar
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    I agree with Jake. It's either a little time now, or more time and effort later.
    -- Bob --
    Please backup. Everything has a life cycle, unexpected and warning free. Nothing will last as long as you want it to.

  6. #6
    Time Machine problem?
    Raz0rEdge's Avatar
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    Without the backup drive (which is an external drive), you shouldn't be seeing any of the old backups to begin with. Surely the machine wasn't setup to backup to the internal drive which is not only silly, but not really a backup. You need to plugin an external drive and then Time Machine to use that as the backup drive. It will then create a brand new backup to start and incremental ones after.
    --
    Regards
    ...Ashwin


  7. #7
    Time Machine problem?
    Willabong's Avatar
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    That (external backup drive) was the first thing I did when I changed the Admin rights! I may have given the wrong impression in my first post, But I have had this iMac for almost 2 weeks, and the backups were running properly but in the name of the previous admin.
    Before I bought this 27" model I owned a 20" model, and I can't remember how I did it but Time Machine (after changing the Admin) ran backups with my name, and I had that machine for 2 years without problems!
    Reinstalling would be a very last resort for me as I would probably get in a real mess!

  8. #8
    Time Machine problem?
    Slydude's Avatar
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    Have you deleted the previous owner's admin account from that machine? If not that may be part of the problem. If you go to System Preferences and open the open the Sharing Preference Pane what name is listed there for the computer? That's the name that The Machine uses to name the Time Machine backups.

    Assuming that your current account is an administrator account you should be able to rename the computer to whatever you like. You should then be able to delete the current time machine backup if you like and start with the correct name.
    Last edited by Slydude; 07-31-2019 at 01:02 PM. Reason: Corrected typo
    “Hard work beats talent when talent fails to work hard.”
    Kevin Durant

  9. #9
    Time Machine problem?
    pm-r's Avatar
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    My problem is that even though I have removed the old Admins details and replace them with my own,

    Can you clarify your statement??

    Did you just REPLACE your name for theirs, or create a brand new admin usersname for yourself.

    If you just did some sort of replace(somehow, and I don't know how you would have), I would agree with the others that you need to get it all sorted out now rather than later.

    You may even be able to do it fairly easily using Migration Assistant.app.



    - Patrick
    ======

  10. #10
    Time Machine problem?
    Willabong's Avatar
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    Slydude: You may have hit on the solution, I hadn't changed that name! I managed to delete all of the previous Admins (named) backups, but there is one backup in the dustbin that will not delete, it is in my name and is a current one I think?
    pm-r: I know how to remove the old admin, and of course I created a new admin account for myself so that I could remove the old one!

  11. #11
    Time Machine problem?
    pm-r's Avatar
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    but there is one backup in the dustbin that will not delete,

    Try using the Finder "Secure Delete Trash" or whatener its wording is these days.


    - Patrick
    ======

  12. #12
    Time Machine problem?
    Slydude's Avatar
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    Time Machine names backups based, at least in part, upon whatever name the computer is given. When users do a clean install that usually takes care of the naming process as part of the setup. If you simply create a new user account and don't go through the initial setup the machine seems to retain the original name.

    If the backup that won't delete is in your name it's probably recent. If you choose to do so it should be possible to format the backup drive and start fresh with a new backup without reinstalling all your apps.
    “Hard work beats talent when talent fails to work hard.”
    Kevin Durant

  13. #13
    Time Machine problem?
    Willabong's Avatar
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    Slydude: So how do I re-format my backup drive on my iMac please?

  14. #14
    Time Machine problem?
    Slydude's Avatar
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    Give these directions a quick read. Since you will be using this drive for Time Machine you can skip part 2 about partitioning the drive.
    “Hard work beats talent when talent fails to work hard.”
    Kevin Durant

  15. #15
    Time Machine problem?
    Willabong's Avatar
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    Thank you so much Slydude, formatted and now backing up to the drive again and in my name, also the backup in the refuge bin has been deleted!
    My thanks also to everyone else who tried to help!

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