All lead to the same error after rebooting to the USB drive and commencing with Windows setup. I've tried letting the Boot Camp Assistant do everything, I've also followed the advice in several posts that suggest interrupting the process by booting back into Mac and using Disk Utility to format the Boot Camp partition as FAT, ExFAT, etc. Windows could not update the computer's boot configuration. (Can't try Windows 7, obviously.)Īll three give me this at the end of setup: I have tried Windows 8.1 Pro, Windows 8.1 Enterprise, and Windows Server 2012 R2. Now your older OS installer thumb drives will work! Just remember to re-set the Date back to the correct year and set it back to auto.I am stuck with a Boot Camp installation on a new Mac Pro. The trick is back dating the systems clock! Alter the Date & Time setting from auto set to manual and then alter the date to a year that is within the given OS’s release window. Not to fear! You can still install the OS. Some Internet recovery images likewise have not been updated.
In all of these just jump down to Step 4 to get to the URL link for the OS image.Īpple did not alter the older images in their downloads. The issue you face with the newer macOS’s is Apple didn’t update the certificate which is why this has become more of an issue as of late.
As an example I had to re-install Lion for someone as they just didn’t want anything newer (90 year old lady) who just didn’t want to relearn how to do things or have the will to update her apps. You’re hitting an expired certificate issue! Here’s more on it If you've got an old macOS install image, it will probably stop working todayĪpple has been doing this for years! You mostly on hit this issue on systems which can’t support newer OS’s.
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