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mac os catalina

  1. Johnny Mickelman

    iMac 2013 died - nothing was backed up, join me on this fun adventure!

    Here's my story, was running Catalina on an 2013 iMac and it became really sluggish responding, couldn't force quit anything so I tried all the usual stuff (restarting, disk utility, safe mode and then it started not even finding the OS (strikethrough logo) I tried internet recovery mode, which...
    • Johnny Mickelman
    • Thread
    • can't find operating sys harddrive disk utility imac 2013 intel internet mac os catalina mac os high sierra mac os mountain lion won't won't mount
    • Replies: 33
    • Forum: iMac
  2. M

    Help please for random numbers appearing on Mac OS Catalina

    These numbers with arrows just started appearing on my mac...in excel, google, any app I'm using...anyone have any idea what they are and how to remove them? Thanks! Mallory
  3. BigDak

    My Mac Mini HDMI 4k 60hz FIX (Mac Mini 2018 - Catalina)

    <<< Check My Solution (Apple Forums) >>>
    • BigDak
    • Thread
    • 60hz bug fix hdmi 2.0 hdmi problems mac mini mac mini 2018 mac os 10.15 mac os catalina voice over
    • Replies: 2
    • Forum: Mac mini
  4. R

    Startup Disk wont appears (Downgrade To High Sierra)

    Hey guys, im running on a mid-2012 macbook pro retina (os catalina) and i want to make a downgrade (to high sierra) but the bootable pendrive wont appears on Startup Disk options. to get more complicated, since i bought this mac i never set a firmware password but the lock appears. so, when i...
  5. B

    Unable to Boot Into Windows 10 via Bootcamp With Pegasus 3 Attached to my iMac Pro After Installing Catalina

    I have a Promise Pegasus 3 attached via the Thunderbolt 3 port of my iMac Pro. Under Mojave the Pegasus 3 was working fine and I could boot into Windows 10 by holding the Option Key and selecting Windows from the Startup Manager. After upgrading the OS to Catalina, I am unable to boot into...
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