
Creating an ISO image from a physical disc or from a set of files is very easy to do however. 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. 1.0 allow the creation of a bootable USB from an ISO image (.iso). 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.

The Ventura installer requires aboutl 12GB. If your Mac doesn't have enough space, the macOS Monterey/Ventura installation can be stuck or slow as well. app you point it to isn't in the applications folder often the USB key you make wont work as it should. app you want it to use, then just click 'create'. 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. Click on the Apple icon > About This Mac >Storage to check the space available on your Mac computer. the program itself is VERY simple to use, you simply select the USB key you want to use (must be 8GB or bigger) and then point the program to the installer. 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.


#MAC INSTALL DISK CREATOR DOING NOTHING HOW TO#
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.
