![]() ![]()
Mac restart choose startup disk mac#Shift: Safe Mode - If your Mac gets stuck during the boot process, booting in Safe Mode might help you diagnose what’s wrong. Like an SMC reset, an NVRAM reset can fix a host of seemingly random issues. NVRAM controls things like speaker volume, screen resolution, and startup drive selection. (The reason for using P and R in the key combination is that Apple used to call this bit of non-volatile memory “PRAM,” for Parameter RAM.) The Mac startup chime should sound a second time. Release the keys and press the power button again to fire up the Mac with a fresh set of SMC settings.Ĭommand-Option-P-R: Reset NVRAM - The other quick fix is resetting Non-Volatile Random Access Memory (NVRAM), which you do by holding Command-Option-P-R during startup. Shut down your Mac, connect it to power, press Shift-Control-Option, and then press the power button while holding those keys down. However, for newer Mac notebooks, where it’s impossible to remove the battery, you need to know this key combo: Shift-Control-Option, using the keys on the left side of the keyboard. ![]() On older Mac notebooks, you can reset the SMC by removing the battery and power adapter, holding down the power button for 5 seconds to drain the capacitors, reinserting the battery, and turning it back on again. On desktop Macs, you reset the SMC by unplugging the power cable for 15 seconds, plugging it back in, and turning the Mac on after 5 seconds. Apple lists all the things an SMC reset can fix. Shift-Control-Option: Reset the SMC - When your Mac is exhibiting truly odd behavior, it may be worth resetting the System Management Controller (SMC), which controls all manner of things, such as batteries, keyboard backlight, and cooling fans. And if your main Mac’s display fails, you can use Target Disk Mode to turn it into the boot drive for another Mac with a working screen. In addition to troubleshooting, Target Disk Mode can also be useful for quickly transferring many gigabytes of files. If either Mac lacks a FireWire or Thunderbolt port, you’re out of luck. T: Target Disk Mode - What if you want to boot from another Mac’s drive using Startup Manager? You can connect the Macs via FireWire or Thunderbolt, and then put the other Mac into Target Disk Mode, which lets it serve as an external drive. If you have a bootable external drive, booting from that drive can also help you isolate problems or provide a different environment, such as a different version of OS X. Startup Manager may also help identify a flaky hard drive if the drive you’re looking for doesn’t appear in Startup Manager, you know you have a problem. ![]() However, you can also use it to force a boot from your primary drive if your Mac is stubbornly booting from another disk. Startup Manager is primarily useful for booting from an alternative drive, like a system clone, USB thumb drive, or a Boot Camp partition. Press and hold Option as your Mac boots to enter the Startup Manager, which lets you select which disk to boot from. Option: Invoke Startup Manager - The first startup key every Mac user should know is the Option key. Not all are useful on today’s Macs, but we wanted the list to be complete. Here are fifteen startup key combinations that can save the day when things go wrong. When the proverbial manure hits the fan and prevents your Mac from booting as you want, knowing the right startup key combination can save the day, whether you boot into Safe Mode, Recovery, Apple Diagnostics, or from another disk entirely. #1619: Stage Manager first impressions, Live Text in Preview redux, SMS 2FA failure fix, moving large folders with ChronoSync.#1620: OS updates, AssistiveTouch for iOS shortcut palette, Photos album sharing bug. ![]() Mac restart choose startup disk free#
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |