Can't update OS. After update system fails, every time...
iMac 21.5 late 2013
I bought this computer and all was fine. It came with an OS X Yosemite, free upgrade. But, if I run the upgrade I begin having problems and eventually the system fails. I tried to delete the 'free upgrade', but couldn't. I talked for many hours with MAC support and tried resetting my computer several times and deleting all data as well. But, after all that I still can't upgrade. It works fine as long as I never upgrade... But, this is an old version and I consider it unsafe, so just use it for gaming and never log into anything on it. I need it for other things though... Does anyone know what I can do? It has 8GB, and uses Intel Iris Pro 1536MB.
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3 Комментариев
Need more specifics.
"I begin having problems" -- What kind of problems? Under what circumstances?
"I tried to delete the 'free upgrade', but couldn't." -- Assuming you mean the OS installer, why not? What happens when you try? The OS installer is just an app in your Applications folder. You're unable to delete it?
"But, this is an old version and I consider it unsafe..." -- It's not.
из Steve
My computer came with a free upgrade to Yosemite. It doesn't work. So, tech support tried to lead me through deleting it, but my computer can not delete the Yosemite free upgrade. If I tried to download a new Yosemite from the App store it just goes to the free upgrade that came with the computer and it's a circle that goes forever. So, I scrubbed the computer by using time machine and going back to the beginning. I've tried Yosemite, and other iMac upgrades, but none of them have been successful. Recently, I'm trying the new Sierra, but get The installer payload failed signature check. I reset PRAM and SMC. Also, I did the clock check. All to no avail... Specifics when I upgrade to Yosemite are not clear my computer just doesn't work well and eventually crashes, but over a rather long period of time. I'm trying to skip Yosemite now.
Thanks for your reply.
из Albec
As long as I never upgrade the iMac works fine, but that's not safe. I need upgrades for security purposes.
из Albec