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installation failed

  1. R

    Unable to update MacOS Sequoia Public Beta (24A5331b)

    Every time I try to "Restart Now," I get an error. I've tried restarting in Safe Mode. No joy. Am I going to be stuck here? I've owned Macs since 1989, and while I'm nowhere near a novice, I am totally baffled what to do about this… other than call Apple, though they tend not to want to help...
    • RayCon
    • Thread
    • installation failed macos 15 public beta sequoia update error
    • Replies: 10
    • Forum: macOS Sequoia (15)
  2. TitanTiger

    Installation failed

    Trying to update my mom's 2020 MacBook Air from Big Sur to Ventura and it keeps failing. "Installation Failed. An error occurred while installing the updates." It has plenty of disk space (188 GB). What I've tried so far: Reboot the MBA. Boot into Safe Mode. Reset PRAM/NVRAM. Downloaded...
  3. MushroomMan

    MBP 15 8,2 (2011) Thin Red Horizontal Lines??

    I'm hoping some of you gurus can give me a bit of direction here - I am not completely useless with Macs, but I am far from an expert so please forgive me if I am missing anything obvious. I have had this nasty problem when my 2011 MBP 15 starts up where I get 'thin red horizontal lines' on the...
    • MushroomMan
    • Thread
    • amd graphics problem installation failed mbp 15 2011
    • Replies: 4
    • Forum: MacBook Pro
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