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29 sty 2014 · Turn on the computer. Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears. Hold the keys down until the computer restarts and you hear the startup sound for the second time. Release the keys.
20 wrz 2022 · Follow these steps for iMac, Mac mini, Mac Pro, and Xserve. Choose Apple menu > Shut Down. After your Mac shuts down, unplug the power cord. Wait 15 seconds. Plug the power cord back in. Wait 5 seconds, then press the power button again to turn on your Mac.
Unplug the computer's power cord from both the wall and computer. Wait 15 seconds. Attach the computers power cable. Wait another 5 seconds and press the power button to turn on the computer. PRAM RESET. Shut down the computer. Locate the following keys on the keyboard: Command, Option, P, and R.
23 mar 2019 · I'm suspecting this may be due to the fact I'm using a PC keyboard after I broke my Apple one a while back. I read that I can reset my PRAM through Terminal with the following command: sudo nvram boot-args=”-p -r”. But all I get is this error: nvram: Error setting variable - 'boot-args': (iokit/common) general error.
6 paź 2023 · Our guide explains how to reset PRAM and SMC on your Mac to help your computer perform optimally. Then, get a dedicated Mac performance optimizer like AVG TuneUp to keep your Mac healthy and working better for longer.
11 wrz 2024 · When your Mac doesn’t start up correctly, the hard drives or devices don’t connect or show up, your Mac has hardware-related issues, etc. you may try to reset PRAM/NVRAM to fix the issue. Check how to do it below.
If you're experiencing weird glitches with your Mac, doing a reset of your MacBook or desktop Mac could help. Here's how to reset the NVRAM, PRAM, and SMC on either an Intel or M-Series Mac.
