Welcome, in this article, I will show you how to Fix macOS High Sierra Screen Resolution on VirtualBox. Therefore, you might install macOS High Sierra, macOS High Sierra, macOS X El Capitan, or macOS Mojave on VirtualBox. However, while a user is installing an operating system on there computer, So, that user wants to have the full HD screen resolution on there PC. Therefore, I will show the common error of macOS High Sierra which is Screen resolution. One important guide for you that only there is some screen resolution, which you can use for macOS High Sierra. On VirtualBox, such as 1920 x 1080 and this related article, worked for some heavy users of macOS operating. Below you can see the full article about this solution of macOS High Sierra screen resolution.

Apowersoft Screen Recorder is a free screen recording app for Mac that comes with no time limit. Being said that, you can record as long video as you want. Being compatible with macOS High Sierra, Apowersoft Screen Recorder has gained much popularity among them, who do not want to use QuickTime Player but want to use a free alternative. Capture the entire screen: Choose Capture Screen. Tip: When working with multiple screens, you.

Fix macOS High Sierra Screen Resolution on VirtualBox

At the first of this error, you need to install successfully macOS High Sierra on your Windows on VirtualBox. During the installation, you might face any problem, but don’t worry I will share the article, about installation also. After that, you completed the installation then you will face this problem that you cannot use a full-screen mode of macOS High Sierra. Therefore, we found the solution for this. The default size that you are right now using that is 1024×786, to use 1920×1080, follow some simple steps in the article, to fix macOS Mojave screen resolution.

Related:

• 1280×720 (HD)
• 1920×1080 (FHD)
• 2560×1440(QHD)
• 2048×1080 (2K)
• 3840×2160 (4K)
• 5120×2880 (5K)

Step #1. There is a simple code that made by Mac company, you can get the code from below and remember one thing that during the installation of codes, be careful to not make any mistake. Otherwise, you cannot change the screen resolution mode.

Start Fixing macOS High Sierra screen resolution

Step #2. Open the code with notepad, then edit the name of macOS High Sierra operating with VM Name. And you need to replace the Exact name on VM Name. Otherwise, you will not able to change the screen resolution. However, type your screen resolution at the end Machine code. Then, you need to replace the size which is 1920×1080.

Edit codes name

Step #3. In this step, you need to run Command Prompt As Administrator, for this go to start menu then type CMD.

Run command prompt

Step #4. In this step, you need to Enter or copy-paste the edited codes for macOS High Sierra screen resolution. However, you opened the CMD and copy the codes step by step, then by pressing enter go further.

Step #5. After that, you successfully insert the codes. Therefore, run VirtualBox and power on the macOS High Sierra on VirtualBox. Then you will see big changes that coming screen in larger the previous screen.

Sign to macOS High Sierra

Step #6. Finally, you are done with Fixing macOS High Sierra screen resolution on VirtualBox. Therefore, to be sure that you are using the HD screen for that on left-handed Apple logo click on that and about Mac, then go to display setting. Certainly, you are done with this error which you are facing every time while installing macOS High Sierra on VirtualBox.

macOS High Sierra HD Screen

Conclusion

That’s all about How to Fix macOS High Sierra screen resolution on VirtualBox. However, if faced any kind of problem in this article feel free and comment on below comment box. And I hope you have gotten something from this article, by subscribing to our website you will get the notification about our latest post.

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.

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 Outbyte 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.

Macos Screen Recording With Sound

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.

Macos Sierra