The new macOS Sierra update is now available to download and install for OS X 10.11 El Capitan users, but 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. As more of us upgrade to macOS Sierra, installation problems are being discovered, so we will be constantly updating this guide as new problems—and solutions—are found.

Problems can arise when there is a new version of the operating system, but don’t let the list below scare you, because most people will find the process of updating to macOS Sierra to avoid problems.

As for what every Mac user looking forward to the last stable release, which is High Sierra 10.13. Keeping up with the latest OS versions has only one drawback: You could always encounter the scenario that your gadget was not compatible or your favorite app was not performing efficiently.

Obviously, some little compatibility issues don’t hold us back from installing the latest version of macOS. Though you may face some problems, with some technical help you can get rid of those problems and have fun with your new operating system macOS. Here are the solutions to some of the high Sierra installation problems: 

• macOS Sierra won’t download:

  This is a very common problem with version 10.13. The download stops after giving an error message saying, “MacOS High Sierra download has failed” or that you need to try again later. There could be multiple reasons for this:

  • It may be because many people must be trying to download the OS at the same time. So just wait for an hour or two and then start again.
  • Switch to a reliable internet connection, preferably Ethernet.
  • There may be some partially downloaded files in your macOS folder. Find the file named “Install macOS 10.13” and delete it. Then restart your Mac and try again.
  • Maybe your Mac store account has some unfinished downloads. Restart your download from there.
  • Finally, try rebooting your mac once and then start again.

• High Sierra Installation stuck:

  Sometimes after your download is complete you will not find any prompt to install the OS. Try finding a file named “Install macOS 10.13”. From there you will be able to install your operating system.

  • Make sure you have enough space on your hard drive to install the entire OS. If you don’t have enough space, restart your Mac and then open with the option of Ctrl + R. this is a recovery option. You will find a list of your files. Delete the files you no longer need.
  • There may be hidden Time Machine files that may be hoarding space. Clean up these files and try installing again.
  • If after the completion of your download a problem arises, restart your system. Then press command + option + R on your keyboard.
  • You can even try creating an external startup disk by following Apple’s instructions.
  • It is advisable to keep your system in safe mode while trying to install macOS High Sierra.

• mpkg seems to be missing:

  Install “macOS high sierra” from the store and then when it’s downloaded, press Ctrl + Q to quit the installation. This way this will remain installed in your applications folder. Now attach a USB drive bigger than 8GB and backup everything you have on that drive as installation process will format the drive. Now you will need to use a disk creator app. Follow the instructions and then install your OS with the help of the flash drive.

macOS Sierra Installation Problems and Upgrade services are offered by Apple to help people install the latest version of the OS but people still face many compatibility and runtime issues. Soon all these problems will stabilise as more and more upward compatibility occurs between the different versions. Apple is currently focusing on making this possible.

• macOS Sierra won’t start:

Restart your Mac and keep pressing Command + Option + P + R to reset your Mac’s NVRAM.

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

• Mac runs slowly after macOS Sierra upgrade:

If your Mac is really slow after the update, there are several things you can try to speed up macOS Sierra Installation Problems.

First, restart your Mac to see if that helps. If not, apps that seem to take up too much RAM will be kicked out. 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.

• macOS Here’s how to fix the most common issues:

• • 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.