Every time I download High sierra and start the upgrade process I get the message, An error occurred while preparing the installation. Try running this application again.
And I get it every time. How can I try to fix this?
iMac Line (2012 and Later)
zuletapintor Said:
"I can't upgrade to High Sierra, Every time I download High sierra and start the upgrade process I get the message, An error occurred while preparing the installation. Try running this application again. And I get it every time. How can I try to fix this?"
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Three Things...
A. Boot in Safe Mode:
See what happens when you boot in Safe Mode[Hold down the shift key upon boot]. In Safe Mode, Login Items do not run; certain preferences are set aside; and damaged system files are intentionally fixed. Once booted into Safe Mode, wait 30 seconds and then restart the Mac.
B. Try a New Admin User:
For temporary usage, create a new administrator user. See if you can install with it.
C. Try Ethernet:
Contact your Mac to your router using Ethernet. A hardwired connection would be more reliable.
zuletapintor Said:
"I can't upgrade to High Sierra, Every time I download High sierra and start the upgrade process I get the message, An error occurred while preparing the installation. Try running this application again. And I get it every time. How can I try to fix this?"
-------
Three Things...
A. Boot in Safe Mode:
See what happens when you boot in Safe Mode[Hold down the shift key upon boot]. In Safe Mode, Login Items do not run; certain preferences are set aside; and damaged system files are intentionally fixed. Once booted into Safe Mode, wait 30 seconds and then restart the Mac.
B. Try a New Admin User:
For temporary usage, create a new administrator user. See if you can install with it.
C. Try Ethernet:
Contact your Mac to your router using Ethernet. A hardwired connection would be more reliable.
Suggest that one checks Application folder for a possible Damaged Install High Sierra and drag and drop to trash and empty Trash.
Re-download a fresh copy.
I can't upgrade to High sierra,
