Trying to install the most recent OS on my iMac. It seems to stop with "about 30 minutes remaining". I have tried shutting down and restarting, and can't seem to find adequate instructions online to resolve. Any thoughts?
There are factors:
Some which are beyond your control and those with are totally under your control
Like poor Wifi connection
Slow wifi connection
Too many other people downloading at the same time and Apple Servers are overloaded
Software on the computer interfering with the download process including AntiVirus Software
Notation: Disabling the AV Software may or may not solve the issue. Removal of the AV Software may increase the chances of the download to perform as expected.
Running behind a VPN which may increase Packet losses or corruption of the download
If via wifi & too many Other devices using the wifi at the same time reducing the Bandwidth to your computer.
Best Results are via Ethernet Cable to Router
Restart in Safe Mode. This will perform a Disk Repair, clear cache files and only load Apple Software, extensions and fonts. The boot up will be slow and can take some time - Normal
Try Again using the Software Update Applet in System Preferences / Setting
Worst case - Restart in Recovery Mode and choose Reinstall macOS.
This in theory will pull the latest version of macOS this computer qualifies to run
There are factors:
Some which are beyond your control and those with are totally under your control
Like poor Wifi connection
Slow wifi connection
Too many other people downloading at the same time and Apple Servers are overloaded
Software on the computer interfering with the download process including AntiVirus Software
Notation: Disabling the AV Software may or may not solve the issue. Removal of the AV Software may increase the chances of the download to perform as expected.
Running behind a VPN which may increase Packet losses or corruption of the download
If via wifi & too many Other devices using the wifi at the same time reducing the Bandwidth to your computer.
Best Results are via Ethernet Cable to Router
Restart in Safe Mode. This will perform a Disk Repair, clear cache files and only load Apple Software, extensions and fonts. The boot up will be slow and can take some time - Normal
Try Again using the Software Update Applet in System Preferences / Setting
Worst case - Restart in Recovery Mode and choose Reinstall macOS.
This in theory will pull the latest version of macOS this computer qualifies to run
Thanks very much for the detailed instructions. I sat down to follow them this morning and found that somehow the stuck preparing had unstuck itself and the update completed overnight. Go figure. Again thanks.
Always the way
When all seems lost, presto it starts to work as expected 👍
Thank you for taking the time to update use all 😎
Happy computing
MAC OS 15.0.1 stuck in prepare
