keyboard
extended keyboard with numbers to the left are no longer functioning. they work for other users on the computer, just not for me. sounds like a simple fix, but I can't figure it out.
iMac 21.5″, macOS 10.12
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Try resetting the NVRAM. The NVRAM is a special memory section on your Mac that stores data that persists even when the Mac is shut off, such as volume settings and screen resolution - it's the information the computer uses to maintain settings after a reboot. You may have to do each of these several times because sometimes that's what it takes to stick. Hold the keys until the Mac chimes three or four times, then release.
Reset the NVRAM
How to Reset NVRAM / PRAM on your Mac - Apple Support
If the above doesn’t fix things, see if the problem still happens in Safe mode (hold the shift key down at startup). It can take much longer to safe boot (10 min) so be patient.
Please see > How to use safe mode on your Mac - Apple Support
Safe mode disables loading third-party drivers, forces the OS to do disk repair, clear certain caches and logs and other miscellaneous housekeeping. It's non-destructive to user data so is safe to do. Very often certain weird software behavior is corrected by simply logging in this way as a troubleshooting method. When you're in safe boot, the machine will not be at its best performance, especially with graphics, but that's expected.
Does the problem persist while in Safe mode?
Exit safe mode by restarting your Mac normally and re-evaluate the issue again.
If the problem is still unresolved, please return here and post a reply and we’ll see what else we can come up with for help.
