![]() ![]() If you get the above message, the good news is that at least your Mac hasn’t frozen mid-update! Many of the same fixes we’ve listed here apply to the above error too, but another thing you should try is checking that the date and time on your Mac are correct. What if I get the message that “an error occurred while downloading the selected updates”? You can now follow the onscreen instructions to download and install a fresh copy of macOS. In the popup that appears, select “Reinstall macOS.” Once in Recovery Mode, click the Wi-Fi symbol in the upper-right corner, and make sure you’re connected to a fast, reliable network.Ĥ. Power up your Mac, but immediately press and hold the Command + R keys. You may run into this problem even after macOS Sierra 10.12 and macOS High Sierra 10.13, but know that you will be able to apply this method again if that happens.2. Type in your password and you're back in business. That's normal, even if you previously bypassed it. ![]() You will have to press the Enter/Return key after each one. You then need to type the following commands: Then, quickly press the Command and S keys, to get you into the single-user mode.) Hit the Command, Option, P and R keys at the same time, right after you power it on, and wait until you hear the startup chime for the third time before letting go. (I've seen someone recommend that you reset the PRAM three times before booting in the single-user mode. If you did it right, you should see a whole bunch of lines on the screen in what is a Terminal-like interface. ![]() That's done by pressing the Command and S keys at the same time, right after pressing the power key. ![]() Next, you have to boot your Mac in single-user mode. Pressing the power key for a couple of seconds will do the trick. First, you need to shut down your Mac, if it's powered on. You can try to reboot or reset the PRAM and SMC - the first things that Mac users can try when something isn't working right - but that will not fix it. It is not clear what exactly is causing macOS to act up after installing an update, but it rears its ugly head after powering on the Mac. ![]()
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