In Mac OS, how to restart my computer with extensions off?
You may want to start your Macintosh with extensions disabled for troubleshooting purposes.
To restart a Mac OS computer with extensions off, hold down the Shift key during start-up. Keep holding it down until you see the Welcome to Macintosh dialog box with "Extensions Off" shown at the bottom of the box.
There are several reasons you may wish to start with extensions off:
* If you are installing new software, some extensions may conflict with the software installer. This is…
