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How to fix the most common macOS Sierra’s issues ?

Posted in Article, OS4 months ago • Written by Murtaxa2 Comments
 How to fix the most common macOS Sierra's issues?

How to fix the most common macOS Sierra’s issues?

Here I have written the ways How to fix the most common macOS Sierra’s issues? 

macOS Sierra has already been made available to users and it can be exciting to get your hands on a new operating system loaded with new features and enhancements. While most users are having a smooth experience with the latest operating system, some have been facing annoying issues.

In this post, we will go through the common macOS Sierra’s issues and how to fix them.

If you’ve just decked out your Mac with the latest operating system and noticed that things don’t work the way they should, or encounter any other issues, then we have a list of fixes for the most common problems.

Certainly, when there’s a new release of an operating system there are going to be some problems, but don’t let the list below put you off, as most people should find the process of upgrading to macOS Sierra pretty painless. If you haven’t upgraded already, check out our guide How to download macOS Sierra.

If you do experience any problems with macOS Sierra, then don’t worry – you’re not alone, and we’ve collected solutions to the most common issues to help you get your Mac working just the way it should.

How to fix the most common macOS Sierra’s issues ?

1- macOS Sierra freezes or crashes when installing

This may happen to your mac. If your Mac crashes or becomes unresponsive while installing macOS Sierra, then there are a few things you can try to fix the problem.

Before installing macOS Sierra, uninstall or disable any antivirus software on your Mac, as that may be causing issues.

Press the power button on your machine while holding down the Shift key on your keyboard. Boot your Mac into Safe mode, then try installing macOS Sierra again. It might also be worth switching from a Wi-Fi connection to a wired connection before you download and install.

2- Not enough space to install

Plenty of the time OSs give a message. 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. To do this, turn off your Mac and wait 10 seconds, the press the power button.

Once you hear the startup tone hold down the Shift key on your keyboard. When the grey Apple logo appears, release the Shift key.

Once in safe mode delete any unnecessary files, or move them to an external hard drive, to free up some disk space. Then restart your Mac and try to install macOS Sierra again.

3- macOS Sierra Upgrade Shows “An Error Has Occurred” Or “Failed to Download”

This is a common issue that many users face while upgrading their Mac to a new operating system. The solution is quite straightforward and easy to tackle.

To fix this issue, you have to delete the existing macOS Sierra installer and re-download it. To do so, open Launchpad and you should see the half-downloaded “Install macOS Sierra” file with a question mark on it. Delete this file, reboot your Mac and retry the download process.

4- macOS Sierra won’t start

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).

Hold the keys down until the computer restarts and you hear the startup chime for the second time. Release the keys after you hear the second startup chime. The PRAM will be reset as well.

For other ways to fix a Mac that won’t start, check out our guides How to Use OS X boot options to troubleshoot your Mac and How to fix a Mac that won’t start.

5- Wi-Fi Problems

Internet connection and Wi-Fi problems are the most annoying issues anyone could face while using a new operating system. Some users have reported that webpages, including downloads, load very slowly after upgrading to macOS Sierra.

Firstly, you have to ensure that there are no issues with your router and that your ISP is providing a proper internet connection. If these two have no issues then you can try deleting your WiFi preferences and start afresh. To do so, read the steps below:

  • On your Mac, open Finder.
  • Select Go from the top menu and choose Library (you have to press the Alt key while the menu is open so that you can view the Library option).
  • Go to /Preferences/SystemConfiguration/.
  • Delete the following files:
    • com.apple.airport.preferences.plist
    • com.apple.network.identification.plist
    • com.apple.wifi.message-tracer.plist
    • NetworkInterfaces.plist
    • preferences.plist
  • Next, reboot your Mac and router.

 6- “This copy of the Install macOS Sierra.app application is damaged, and can’t be used to install macOS” Error

If you see this error while attempting to download and install macOS Sierra, it means that the file is either corrupted or was interrupted during download.

One way to fix it is to delete the “Install macOS Sierra” file from Launchpad, reboot your Mac and download the macOS Sierra file again.

7- Installed Apps Show ‘Damaged and Can’t Be Opened’ Error

If you have updated to macOS Sierra and get a ‘Damaged and can’t be opened’ error when trying to launch an app, you should make sure that the app has been updated to the latest version.

If the issue still persists after updating the app to the latest version, remove it from your Mac and install it again.

As a last resort, if nothing else works, you can clear the cache.

  • Open Finder.
  • Click ‘Go’ from the top menu and choose ‘Go to Folder’.
  • Enter ~/Library/Caches into the text box.
  • Delete the files from every folder.
  • Now, repeat the same process for /Library/Caches (without the ~ symbol)

Reset the PRAM by restarting your Mac and holding down Cmd + Option + P + R keys.

Even after all this, if the problem still persists, then try launching the faulty app while holding Cmd + Option keys.

These are some of the most common issues that users are facing after upgrading their Mac to macOS Sierra. For most, it has been a seamless experience and we hope that this article will clear out all the issues you’re facing with the new operating system.

What problem are you facing with macOS Sierra? Let us know in the comments below.

8- iCloud Error and Authentication Issues

Some features and functionality of macOS Sierra depend on iCloud and you’ll be asked during the setup process to enable some of these features such as Storage Optimization and iCloud Documents and Desktop. You can skip them if you want but an annoying issue that some users are facing is that iCloud constantly pops up for authentication or displays an error.

For instance, you may get an ‘Error connecting to iCloud’ popup or see something like ‘This Mac can’t connect to iCloud because of a problem with …’. To fix these issues, do the following steps:

  • Open the  Apple menu and choose System Preferences.
  • Select iCloud and click on ‘Sign Out’.
  • Next, reboot your Mac and open the iCloud preference pane again.
  • Sign in into your iCloud account.

9- Lag & Other Issues with Logitech Mouse

Unfortunately for users of some Logitech-branded mice, the update to macOS Sierra has broken compatibility, and has caused a series of issues in their accessories. Some of those problems include “laggy” response times, and some customizable buttons flat-out not responding at all.

The issue stems from a lack of compatibility between macOS Sierra and Logitech’s Control Center app. The latest release for the Control Center app, version 3.9.4, specifically mentions that the M705’s forward and back buttons are not working, and scrolling was “problematic” as well.

Therefore, you have to wait until Logitech releases an update to fix the issue.

10- Mac runs slowly after macOS Sierra upgrade

If your Mac is running noticeably slower after upgrading, there are a number of things you can try to speed up macOS Sierra.

First of all, try restarting your Mac to see if that helps. If it doesn’t, force-quit any apps that appear to be taking up a lot of RAM. You can identify these by using Activity Monitor (in /Applications/Utilities) to establish what apps and processes are using up the most CPU or RAM. Its CPU tab lists active processes, with a real-time view of what’s going on.

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.

Also delete the cache. Open the Finder window, select ‘Go’ from the top menu and select ‘Go to Folder’.

In the text box that appears type /Library/Caches

Remove the data from inside every folder. Now repeat the process with /Library/Caches (without the symbol). 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.

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2 Comments so far. Feel free to join this conversation.

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