• High Sierra Download
• High Sierra Firmware Update Mac Pro
• High Sierra Update Download

MacOS High Sierra 10.13 downloaded but won’t install! If you get stuck or fail to install the downloaded macOS 10.13, follow any one of the below tips to fix the issue: Open Launchpad Delete 'Install macOS Sierra' file with a question mark on it; Reboot Mac and retry downloading a new macOS Sierra update 10.13. Oct 07, 2019 Mac mini introduced in mid 2010 or later iMac introduced in late 2009 or later Mac Pro introduced in mid 2010 or later. To find your Mac model, memory, storage space, and macOS version, choose About This Mac from the Apple menu. If your Mac isn't compatible with macOS High Sierra, the installer will let you know.

Not all Mac users are Mojave fans. There remains a high percentage of users that still use High Sierra despite the release of the new macOS version.

Although Apple has stopped support for High Sierra since the launch of Mojave 10.14, some Mac users running High Sierra are still downloading updates for their system.

However, there are users who got a black screen after updating to High Sierra. High Sierra Update 2019-002 10.13.6 fails to install, and users who have run into this problem are stuck with a black screen, even though the device is clearly on.

The mouse and other peripherals are working fine, but when you click randomly, a dull sound is heard, which means that the screen is not clickable. When the Power button is pressed and the computer is restarted, it boots up in normal mode, but upon checking, the update has never been installed and is sitting under the Pending Updates in the App Store.

Some Mac users who encountered a black screen after the High Sierra update and then did a hard reboot were also having trouble restarting their computers again. Choosing Restart from the Apple menu only brings up the black screen once again, and the users are stuck in a loop. Only by pressing the Power button can the device boot normally.

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High Sierra Download

This problem is depressing, especially for those stuck in a black screen loop.

What Causes Black Screen After High Sierra Update?

If you got a black screen after the High Sierra update installation, then it was possible that the update files had not been downloaded or installed correctly. The update files could have been corrupted, resulting in an unsuccessful update.

Another reason could be corrupted SMC and NVRAM. If you got a black screen after updating to High Sierra, you might want to check the SMC and NVRAM settings since these components are responsible for your Mac’s display.

Other factors you should look into are your security settings, disk health, and possible virus infections.

What to Do When High Sierra Update Fails and Black Screen Appears

Sometimes problems during update installations happen because of your device not being optimized for the process. To avoid hiccups, make sure to get rid of junk files on your Mac using Tweakbit MacRepair, delete any unused apps, and restart your computer before downloading the updates.

If you encounter problems such as a black screen after the High Sierra update, you can follow the troubleshooting guides below to restore your display and fix the update error.

Step #1: Boot into Safe Mode.

The first step in fixing update errors is to boot into Safe Mode. This makes sure that no third-party processes will get in the way of the installation.

To boot into Safe Mode, follow these steps:

1. Turn off your Mac.
2. Hold the Shift button, then press Power to turn it back on.
3. Release the Shift button once you see the Apple logo and the progress bar.

Step #2: Reset SMC and NVRAM.

After booting into Safe Mode, the next step is to reset the System Management Controller or SMC. SMC manages the video and external displays of macOS, so resetting it should be one of the first steps you should take.

To reset SMC, shut down your Mac, then hold down Shift + Control + Option, then press Power at the same time. When you see the light on your MagSafe adapter blink with a different color, that means that the SMC has been reset. Release all the keys and boot as usual.

While you’re at it, you might also want to reset your Mac’s system settings, which is very easy to do. Shut down your Mac once again, then turn it on while pressing Command + Option + P + R on your keyboard after you hear the startup sound. Wait for the second startup sound before releasing all the keys, then boot as normal.

After resetting SMC and NVRAM, check if you can download and install the High Sierra update without going into the black screen.

Step #3: Delete Old Update Files.

MacOS update files delete themselves automatically after being installed. But if the installation was not successful, then it is possible that the update files are still on your computer. If they are, you won’t be able to download a new copy of the update and macOS will always revert to the old update files.

You need to search for the old update files and delete them. If your update was downloaded completely, you should check the ~/Applications/ directory and look for a file with a filename in this format “InstallXXXX”, InstallHighSierra, for example. Delete that file and download the update from the Mac App Store again.

If you can’t find the file in the Applications folder, then the download has probably not been completed. If this is the case, you can also check the /Library/Updates folder.

If you can’t find it in any of the folders, search for the file via Finder. Type a part of the name of the file in the search box, then press Enter to start the search. Once you find it, delete the update file and re-download it via App Store.

Step #4. Delete Cached Data via Terminal.

If you’re having trouble shutting down or restarting your Mac and you’re stuck in a black screen loop, you can try deleting the cached data using the Terminal. To do this:

1. Launch Terminal from Finder > Utilities.
2. Enter these commands one at a time, then hit Enter after each command line:
   • rm -rf ~/Library/Caches/
   • rm -rf ~/Library/Saved Application State/
   • sudo rm -rf /Library/Caches/
   • sudo rm -rf /System/Library/Caches/
   • atsutil databases -removeUser
   • sudo atsutil databases -remove
   • sudo atsutil server -shutdown
   • sudo atsutil server -ping
   • sudo rm -rf /var/folders/

Restart your computer after executing these commands to see if you can now boot normally.

Step #5: Restore Mac to an Earlier Date.

If nothing works, you can restore your system to an earlier time using your Time Machine backup. Follow these steps to undo the changes and roll back to an earlier date:

1. Reboot your Mac, then press Command + R to boot into Recovery Mode.
2. Choose Restore From Time Machine Backup.
3. Click Continue.
4. In the Restore Your System window, click the Continue button.
5. Choose your Time Machine backup, then hit Continue.
6. Click on the most recent backup of your Mac, then click Continue to start the rollback.

Summary

Installing macOS updates is usually a simple process. However, some unwanted elements might complicate it and lead to update failure. If you’re having trouble installing High Sierra updates, or any update, for that matter, you can follow the directions above to resolve the problem.

With the promise of increased functionalities and better performance, it is little wonder how droves of Mac users opted for the High Sierra, some of the users' expectations were however cut short as their Mac seemed to run on slow-mo immediately after this update. Should you be among these affected users and wondering why your mac is running slow after High Sierra update, feel free to read this article for proven fixes to resolve this issue.

First, Check If Your Mac Is Compatible with High Sierra

If your Mac is not compatible with the new macOS High Sierra, it will lead to some problems when using the Mac, like poor performance and running slow. Below is a list of compatible Mac models that could work well with High Sierra.

• iMac (Late 2009 and later)
• MacBook (Late 2009 and later)
• Mac Mini (2010 and later)
• MacBook Pro (2010 and later)
• MacBook Air (Late 2010 and later)
• MacBook Pro (2010 and later)

After checking whether your Mac is compatible with High Sierra, next we will share with you 5 effective solutions to speed up your Mac. Just keep on reading!

How to Speed Up Your Mac after High Sierra Update?

With the uncontrolled hype of the macOS High Sierra update which is around its better data management, video streaming, and gameplay graphics, it is no wonder some Macs are running slowly to accommodate this update. Various issues have been linked to slow performances in Macs, such as full hard drive, system aging or the presence of too many applications running simultaneously. Although the specific reasons for slowing down the Mac might be unknown, the fixes for this problem have been identified and some of our trusted fixes are listed below:

• 1. Use A Mac Optimization Software [100% Workable]
• 2. Clean Hard Drive on Your MacBook
• 3. Activate the Optimize Storage Option on Your Mac
• 4. Decongest Your Mac Memory and CPU Space
• 5. Reconfigure SMC & PRAM/NVRAM

1. Use A Mac Optimization Software [100% Workable]

A powerful Mac optimization software can help a lot for a slow Mac. It can efficiently optimize your Mac through some easier ways. Here we found the best Mac optimizer, which is called Umate Mac Cleaner. It is the leading cleanup tool to make your Mac run faster and improve its performance.

4 Ways to Get a Faster Mac with Umate Mac Cleaner

One of the main features of Umate Mac Cleaner is 'Speed Up Mac'，which comes with 4 options to get a faster Mac: disable the startup items, deacivate the heavy consumers, remove the launch agents and free up ram.

• Disable Startup items: Disable startup items which automatically launch when you boot the Mac.
• Deacivate Heavy Consumers: Deactivate heavy consumers that occupy CPU usage and memory.
• Remove Launch Agents: Remove those launch agents that run secretly in the background and automatically start their parent programs.
• Free Up Ram: Deactivate those processes or apps that are hogging lots of RAM on your Mac and create more space for it.

Why Umate Mac Cleaner Stands out Among Other Ways

• 2x greater performance
• 3x faster boot time
• Extremely easy to use
• Speed up Mac with just 1 click
• Safe to use without affecting important data

How to Make Your Mac Faster with Umate Mac Cleaner

Step 1. Download and install Umate Mac Cleaner, and it's free to scan how many files can be cleared.

Step 2. Select 'Speed Up Your Mac' tab on the app and click the big 'Start Now' button for locating the items that you need to disable.

Step 3. Choose those items you want to disable and hit the 'Disable' button to accelerate Mac.

2. Clean Hard Drive on Your MacBook

Unlike the human brain that constantly deletes old and unnecessary data or files by itself, the Mac never automatically removes its data. The flaw of this design is that over time the limited space hard drive becomes congested and even filled up if nothing is ever deleted, hence frequent decongestion is advised.

Decongestion can be achieved via two methods, either manually or automatically. Manually, a user can go through the rigorous process of searching for and identifying all redundant files and documents on his device and delete them manually. However, compared to the automatical way, this is rather time and energy consuming.

Referring to tools such as Umate Mac Cleaner that could really help, which can automatically identify redundant and hidden files and then delete them, freeing up space on your hard drive to improve Mac's functionality and performance.

3. Activate the Optimize Storage Option on Your Mac

The Optimize Storage feature is one of the subtle yet amazing features that Mac supports but other PC haven't deployed effectively. Optimized Storage is an option permitting Mac to arrange and organize files optimally and automatically.

Apple Menu > About this Mac > Storage > Optimized Storage

Once this option is toggled on, it enforces Mac to automatically organize documents and clean unused, hidden or unread items, which can also transfer them to the iCloud, freeing up valuable space on your drive.

4. Decongest Your Mac Memory and CPU Space

A major reason for your slow Mac after its High Sierra update is that numerous applications are running simultaneously to consume vital CPU space so that the system slows down. When some applications run actively, others run in the background and also consume considerable space. To recover memory space and resolve this issue, we need to deploy the Activity Monitor.

Access Applications > Utilities > Activity Monitor

Under the CPU tab, you would see the distribution of CPU usage among the currently running processes. Should you identify an application that is not necessary but is consuming considerable memory space, be swift to eliminate it by tapping it and hitting the close button at the top-left corner of the screen. Unwanted apps can also be toggled off to save Memory.

5. Reconfigure SMC & PRAM/NVRAM

The System Management Controller (SMC) and parameter RAM (PRAM) are important tools in ensuring the smooth functioning of the Mac. Reconfiguring the SMC resolves all hardware management issues like fans or battery faults and so on. While reconfiguring the NVRAM handles issues like pertaining to booting, screen resolutions and battery charge, etc.

SMC on Mac Mini, iMac, Mac Pro & Xserve reconfiguration

1. Power down your Mac and disconnect the cord
2. Leave the system for 15 seconds minimum, then reconnect the power cord
3. After a 5-second wait, power up the Mac normally

SMC on MacBook Pro, MacBook Air & MacBook reconfiguration

1. Power down your Mac and disconnect the cord
2. Leave the system for 15 seconds minimum, then reconnect the power cord
3. Long Press Shift + Option + Control + Power button for 10 seconds minimum, power up the Mac normally after releasing all keys

PRAM/NVRAM reconfiguration on all Macs

1. Power down the Mac, wait a few seconds
2. Power up and simultaneously press Cmd + P + R + Option
3. Release keys after hearing the restarting beep

High Sierra Firmware Update Mac Pro

Final Note

High Sierra Update Download

The slow Mac after High Sierra update is a widespread problem facing many users using different Mac models. However, the above manual solutios would cost you a great amount of time. Instead, the most effective one is Umate Mac Cleaner. It's an useful mac remover with just one-click, which greatly save your time with efficient cleanup. This app works amazing to speed up your Mac and you must be shocked by its powerful functions after using it.