- Macos sierra recovery how to#
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If that doesn't work, try turning off indexing on the drive you're backing up. Continue holding the keys down until the computer restarts, and you hear the startup sound for the 3rd time. You must press this key combination before the gray screen appears. Press and hold the Command-Option-P-R keys. Press and release the power button to turn on the computer.Ĥ. You will need to hold these keys down simultaneously in step 4.ģ. Locate the following keys on the keyboard: Command, Option, P, and R. The computer should still be shut down.Ģ. Disconnect the power cord from the monitorġ. Time Machine problems have been preventing Mac owners from backing up their devices since upgrading to macOS Sierra, and the problem is widespread enough that Apple has released a guide on what to do if you can't back up:Ģ. macOS Sierra problems: Time Machine won't back up Mac But, since most do not do this very quickly, you might be waiting a while.
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If that doesn't work, you may have to revert your Mac to El Capitan until the provider of said Bluetooth device issues a firmware update to said device. running your devices to zero power and charging them again) all devices involved, including the Mac in question, can solve the problem. This can be due to Apple's compliance with the Bluetooth Special Interest Group (SIG) outpacing Bluetooth devices that don't adhere as closely to the SIG's standards. Some macOS users are reporting issues with their Bluetooth devices connecting to their macOS-updated laptop or desktop. MacOS Sierra problems: some Bluetooth devices won't work
Reboot your Mac afterwards, as well as your modem or router. These can be found in the following folders using the Go to Folder command (Command + Shift + G): If you're experiencing slow Wi-Fi speeds after upgrading to macOS Sierra you may need to delete your current Wi-Fi preferences. If the apps are still struggling to load, hold down the Option and Command keys when you click the app's icon. Now repeat the process with /Library/Caches (without the symbol).Ĭlear the PRAM by restarting your Mac and holding down Command, Option, P and R on your keyboard. Remove the data from inside every folder. To do so, open up the Finder window, select 'Go' from the top menu and select 'Go to Folder'. To fix this problem you'll need to delete the cache in macOS Sierra. Instead, they're getting an error message that says the app is 'damaged and can't be opened'. Some users are complaining that they can no longer open certain apps after updating to macOS Sierra. macOS Sierra problems: apps show 'damaged and can't be opened' error
Macos sierra recovery how to#
Running the Repair Disk tool from within Disk Utility may also help, and for more solutions check out our How to speed up your Mac guide.
Now repeat the process with /Library/Caches (without the symbol). In the text box that appears type /Library/Caches Open the Finder window, select 'Go' from the top menu and select 'Go to Folder'. To force-quit an item, click it in the Activity Monitor list, then click the X at the left of the toolbar, then confirm you want to force-quit.Īlso delete the cache. If you've installed macOS Sierra, but your Mac won't start, then restart your Mac and hold down Command, Option, P and R, which will reset the NVRAM (non-volatile RAM).
macOS Sierra problems: macOS Sierra won't start
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Then restart your Mac and try to install macOS Sierra again.
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Once in safe mode delete any unnecessary files, or move them to an external hard drive, to free up some disk space. When the grey Apple logo appears, release the Shift key. Once you hear the startup tone hold down the Shift key on your keyboard. To do this, turn off your Mac and wait 10 seconds, the press the power button. If you get an error message while installing macOS Sierra saying that you don't have enough hard drive space, then restart your Mac and boot into safe mode. macOS Sierra problems: Not enough space to install
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It might also be worth switching from a Wi-Fi connection to a wired connection before you download and install. Boot your Mac into Safe mode, then try installing macOS Sierra again. Press the power button on your machine while holding down the Shift key on your keyboard.
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