If you have encountered any problems, then this guide should help you, as we have the most common issues, as well as their fixes, so you can have your Mac up and running again as quickly as possible. It's worth noting that Apple has now released macOS High Sierra 10.13.1, which includes a number of bug fixes that should address some of the problems we've listed below. If you are encountering any problems with macOS High Sierra, we suggest you install 10.13.1 straight away. Read on for a full walkthrough of the process. However, there have also been reports about, which allows people to log into Macs running the software as an administrator without having to enter in a password.
Because of the potential severity of this flaw, you should make sure you check out our guide on, which walks you through a fix for the problem. If you’ve encountered a macOS High Sierra problem that we haven’t covered, and we’ll do what we can to find a solution. From macOS High Sierra installation problems, to security risks and issues with making apps work, read on to find out how to fix the most common macOS High Sierra problems. How to download macOS High Sierra 10.13.1 As we mentioned earlier, Apple has now released macOS High Sierra 10.13.1, an updated version of High Sierra that includes a number of bug fixes and security updates that should fix a number of problems. To update High Sierra to 10.13.1, click on the Apple menu and select 'App Store'.
From the App Store, click on the 'Updates' tab, and you should see 'macOS 10.13.1 Update 10.13.1' listed. Make sure you've saved your files, and backed up any irreplaceable files, then click on 'Update'. You can also download the macOS High Sierra 10.13.1 update from. MacOS High Sierra won’t download A common macOS High Sierra problem at the moment is that macOS 10.13 begins to download, but then it pauses along with an error message that says “macOS High Sierra download has failed”. Another common macOS High Sierra download problem shows the error message: “Installation of macOS could not continue. Installation requires downloading important content. That content can’t be downloaded at this time.
Try again later.” There are a few reasons why you may get this problem. It may be because a lot of people are trying to download macOS High Sierra at the same time.
If this is the issue, try again later to see if the download now works. It may also be worth switching from a Wi-Fi connection to an Ethernet cable, to ensure your internet connection is as reliable as possible. If you’re still having problems downloading macOS High Sierra, try to find the partially-downloaded macOS 10.13 files and a file named ‘Install macOS 10.13’ on your hard drive. Delete them, then reboot your Mac and try to download macOS High Sierra again. If you still have a problem downloading macOS High Sierra, open up the App Store, click ‘View My Account’ and see if there is anything in the ‘Unfinished Downloads’ section. You may be able to restart the download from there.
Finally, try logging out of the Store to see if that restarts the download. MacOS High Sierra install problems If you’re having problems installing macOS High Sierra, first make sure you check out our guide, which will take you through the steps you need to take to safely install the new operating system. If the macOS High Sierra download completes, but there’s no prompt for the installation to continue, then search in your Mac’s application folder for a file called 'Install macOS 10.13'. Double-click the file to begin installation. You also need to make sure that there is enough hard drive space on your Mac, otherwise the macOS High Sierra install will fail.
To fix the macOS High Sierra problem where the installation fails due to low disk space, restart your Mac and press CTL + R while it’s booting to enter the Recover menu. Select ‘Disk boot’ to boot normally, then remove any files you no longer need. If you’re struggling to free up disk space, look out for hidden Time Machine files that may be taking up large amounts of space. Once you have freed up enough space, retry the installation. If macOS High Sierra encounters a problem at the end of installation, and then shows an error message, restart your Mac and press Command + Option + R on your keyboard while the Mac boots to start up the recovery system over the Internet.
You can also try Shift + Option + Command + R. If your Mac continues to fail to boot, follow Apple’s instructions on. It may be worth restarting your Mac in Safe Mode, then trying to install macOS 10.13 High Sierra from there to fix the problem. MacOS High Sierra won't install, shows 'osinstall.mpkg appears to be missing' error message Quite a few people have contacted us saying that their macOS High Sierra installation fails with an error message that states 'the path /system/installation/packages/osinstall.mpkg appears to be missing'. To fix this, you will need to from a USB drive.
First, download the installer by opening up the App Store and go to the 'Featured' section. High Sierra should appear towards the top of this section. If you can't find it, use the search box, or click the link above. Once macOS High Sierra is downloaded, press Command + Q on your keyboard to quit the installation process. This will keep the macOS High Sierra installer app installed on you Mac in the Applications folder. Next, you'll need a USB drive over 8GB in size. If you don't have one, check out our list of the.
Make sure any files or data on the USB drive are backed up onto another device, as the installation process will format the drive. You'll now need the free app. Download and install the app, then connect your USB drive to your Mac and run the app. In the main menu there will be a drop down list box titled 'Select the volume to become the installer'. Select your USB drive. Underneath that, you'll see a box that says 'Select the OS X installer'. MacOS High Sierra should already be selected, but if not, click on the box, then select the installer you just downloaded.
Finally, click 'Create installer' and follow the instructions. When that's done, restart your Mac and hold down the Option key while it starts. This will open up the boot manager. Make sure you select your USB drive, then start the installation process. MacOS High Sierra shows 'unable to unmount volume for repair' error message Some people are encountering a problem while installing macOS High Sierra where an error message saying 'unable to unmount volume for repair' appears. If you have encountered this problem, first make sure you have a recent Time Machine backup of your drive.
Check out our before continuing, to make sure you have a backup. Also ensure that the Time Machine backup is saved to a separate hard drive (or ) from the drive you wish to unmount. Now, restart your Mac and boot into internet recovery mode by holding down Option + Command + R on your keyboard as your Mac starts. Now, open the Terminal and type: diskutil list Make a note of the disk number of the drive you need to unmount.
Next, type into the Terminal: diskutil unmountDisk force /dev/disk Where we've put enter the correct number for the disk you wish to unmount. Double check this is the correct disk if you're not completely sure, then press Enter.
So How That Bug Fix For Macbook Pro
The disk will now be unmounted. To continue to install macOS High Sierra, open the Diskutil app within recovery mode and reformat the unmounted drive to APFS. Please note that reformatting the disk will remove all data from the drive. This is why it is so important to make sure you have a Time Machine backup before you complete this step. Next, complete the installation of macOS High Sierra, and restore your files using the Time Machine backup when prompted.
Mac won’t start after installing macOS 10.13 High Sierra If you've installed macOS High 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.
While in Safe Mode, run Disk Utility to see if that will fix any macOS High Sierra boot problems. For other ways to fix a Mac that won't start, check out our guides. MacOS 10.13 High Sierra keeps logging you out Some people have been reporting a problem where macOS High Sierra keeps randomly logging them out of their Mac. It’s annoying, but the good news is there’s a number of fixes for this High Sierra problem.
First of all, go to Preferences Security & Privacy Advanced, and uncheck the box where it says ‘Log out after minutes of inactivity’. In the Security & Privacy window, click ‘General’ and uncheck the box ‘Require password after sleep or screen saver begins’. Remember the security implications of this, however. If macOS High Sierra is logging you out while you’re using Chrome, try opening up the Chrome web browser and going to the settings. At the bottom of the screen click ‘Advanced’, then turn off hardware acceleration. A Guest User account appears after installing macOS 10.13 High Sierra Some people have noticed that a Guest Account has suddenly appeared in their login screen after installing macOS 10.13 High Sierra. This icon often has graphical artifacts that accompany the Guest User account.
This appears even if you have not enabled guest accounts. To solve this problem, open the Terminal and type in the following command: sudo fdesetup remove -user Guest Press 'Enter' on your keyboard, then enter in the password you use to log in to your Mac as an administrator.
Now, restart your Mac and the icon will be gone. MacOS 10.13 High Sierra Wi-Fi and internet problems There have been issues reported of people experiencing problems connecting to the internet and Wi-Fi networks since upgrading to High Sierra. If you're encountering a Wi-Fi problem, first try turning your Wi-Fi adaptor off and on again. To do this, click on the Wi-Fi status icon in the Menu bar, then select 'Turn Wi-Fi Off'. Wait a few seconds, then select 'Turn Wi-Fi On'. If that doesn't work, you may need to change the name of the Wi-Fi network, and the password.
To do this, you'll need to log into your Wi-Fi router. The method for doing this will vary depending on the make of router you have, so check the manual for your device before you begin.
Also, making sure your SSID (the name of your Wi-Fi network) is not hidden can also help to fix this problem. One reader contacted us with this problem, and they fixed it by uninstalling a VPN app they were using. This may be worth trying as well.
Apps won't work in macOS 10.13 High Sierra Another common macOS High Sierra problem is that some apps no longer work once you've upgraded to the new operating system. This is especially common if you are using older programs. If you find that an app you used to use no long works in macOS 10.13 High Sierra, the first thing you should do is check to make sure have downloaded and installed any recent updates to the software. You should also check the website of the software.
This may contain updates or advice for getting your hardware to run. If your software is very outdated, it may no longer be compatible with macOS High SIerra. If that's the case, you should consider buying a newer version, or finding an alternative. What apps don't work with macOS 10.13 High Sierra? Here's a list of some of the apps that don't currently work on macOS High Sierra. If you use them, consider upgrading to a newer version.
Final Cut Pro X 10.3.4: Update to the latest version of. Motion 5.3.2: Update to the latest version of. Compressor 4.3.2: Update to the latest version of. Logic Pro X 10.3.1: Update to the latest version of. MainStage 3.3: Update to the latest version of. Adobe Photoshop CS4: Adobe has said it is not making sure this app is working in High Sierra, so best to make sure.
Mac runs slowly after macOS High Sierra upgrade If your Mac is running noticeably slower after upgrading, there are a number of things you can try to speed up macOS High Sierra and fix any problems that are slowing it down. 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, 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 guide. MacOS High Sierra battery problems Has the battery life of your MacBook become shorter since installing macOS High Sierra? This is a common complaint at the moment, so you can check to see what's causing the battery drain in macOS High Sierra by opening up the Finder, then going to Applications Utilities Activity Monitor Energy.
From there you'll see a graph with how much energy the programs you are running are taking up. If it's a lot, you may want to check to see if there is an update to make the software run better in macOS High Sierra. You may also want to uninstall the program and use an alternative. Turning off location services, or stopping unnecessary animations and graphical effects in macOS High SIerra can also help prolong battery life. For more advice, visit our guide, and watch our video below. Mac has missing disk space after upgrading to mac OS High Sierra A macOS High Sierra problem some people have reported encountering is that after the upgrade they have noticed their hard drives are showing a lot less free space than before.
Some users have identified the '/.MobileBackups ' folder as being the culprit. This is a folder that is no longer used in High Sierra, but it can use up a lot of space. Thankfully, it can be removed without causing any issues. First, open up the Terminal and type in: sudo mv /.MobileBackups /Desktop/temp/ This will move the MobileBackups folder to your desktop.
Now, drag and drop the folder into your Trash, then empty it. You should now find you have a lot more disk space available. MacOS High Sierra password security problems We recently reported that there is a. The exploit was discovered by Patrick Wardle, chief security researcher at Synack, and also affects earlier versions of macOS, and it can be delivered by an unsigned app. Apple should be working on a fix to this rather serious problem, but for now you should be extra careful when installing apps, and make sure that you only download them from trusted sources such as the App Store.
We will update this section when Apple releases an official fix. No Mail notifications in macOS High Sierra Some people are reporting a problem in macOS High Sierra where notification banners are no longer showing when they receive new emails. To fix this problem go to System Preferences Notifications and changing the alert style from 'Banner' to 'Alert' or 'None'. Next, change it back to 'Banner' and banner notifications should now work again. If that doesn't help, restart into safe mode (hold down the Shift key on your keyboard when your Mac is starting up to enter safe mode), and try sending a test email to yourself and see if the notifications work. If they do, restart into normal mode and try sending a test email again.
MacOS High Sierra does not delete messages from server If you have tried to delete an email but received an error message that states: 'The IMAP command UID COPY (to Trash) failed for the mailbox INBOX with server error: UID COPY Command is not valid in this state', you may need to delete the email account from the Mail app, then add the email account manually. This seems to be an error that happens a lot with Yahoo Mail accounts in High Sierra. Hopefully Yahoo will come up with a permanent fix for this problem.
Advertisement macOS acting slow? Got the dreaded spinning pinwheel of death? A limited combination of hardware and software generally keeps Mac problems to a minimum. There’s one issue that never seems to go away. You’re not alone if you’re noticing an errant process called kerneltask eating much of your available CPU. So what is this process, and how can you free up precious resources? Read on to find out.
Diagnosing a Slow Mac If your Mac appears to be running slowly, is generating a lot of heat, or sounds like it’s about to take off due to high fan speeds then you’ll want to open Activity Monitor and find out why. This is essentially Apple’s equivalent to the Windows Task Manager — a If you want to be a fairly proficient Mac user, it is necessary to know what Activity Monitor is, and how to read and use it. As usual, that's where we come in.
You can open Activity Monitor using Spotlight: just hit Cmd + Space then start typing “activity” and it should pop up. You can also find it under Applications Utilities, and you might want to It's the primary way many users interact with Mac OS X, but a lot of people still don't know some of the most basic and useful things the dock is capable of.for even quicker access when things start to go wrong. The reason for your slow computer should be evident on the CPU tab.
Just click the%CPU column header to organise running processes by share of their processor usage. Anything using a high amount of processing power will appear at the top, and things will move around as your computer performs various tasks in the background. High CPU usage is generally only a problem when you’re not expecting it. It’s reasonable to expect your machine to chew up resources if you’re running a game, watching a video in your browser, or editing a video. If a single Safari tab or Mac process is using more than its fair share, that generally means something’s gone wrong.
You can kill any such processes by clicking on them, then clicking on the “X” in the top left corner of the screen. Unfortunately you can’t do this for one particular process: kerneltask. The reason for this is that kerneltask is actually your operating system. It’s not so much a single process, but a series of processes under one label.
MacOS does all sorts of things in the background, like sending and receiving data over the network, writing and reading data, and indexing new folders or disks for Spotlight search. This process will often use a lot of your available RAM on the Memory tab, but that’s much less of a worry. The amount of RAM in use will rise and fall as required. High CPU usage however can bring your whole system to a grinding halt, and even result in the occasional complete system crash. Photodirector 8 for mac. So how do you stop kerneltask from negatively affecting your computer’s performance? Quick Short-Term Fixes Because kerneltask is basically your operating system, and killing processes is the best way to free up resources, a simple restart of your Mac will clear the problem up right away.
This isn’t a permanent long term solution if you’ve been having this issue for a while. But it’s a short term fix that should provide immediate results.
Whatever is causing the spike in CPU usage may return. So, if you’ve been having repeat incidents you might want to try resetting your system management controller (SMC) too.
This is easy to do while restarting your computer. Instructions for resetting the SMC vary slightly depending on whether you have an old MacBook, new MacBook, or desktop computer like the iMac. Having trouble with your Mac? Here's how to reset the SMC and PRAM or NVRAM to get it working properly again.
Another common cause of an out-of-control kerneltask process is Flash. Speaking from experience I’ve seen The Internet's relationship with Flash has been rocky for a while. Once, it was a universal standard on the web. Now, it looks like it may be headed to the chopping block. What changed? Do this with Safari in particular.
For a quick fix, try killing any unresponsive or thirsty tabs, or quitting the browser entirely. Other Things You Can Try Perhaps the most obvious fix for any OS-related issues is to update to the latest version of macOS. Simply launch the Mac App Store, head to the Updates tab, and run any outstanding Apple software updates. Flash seems to be another cause of kerneltask issues. Update to the latest version of Flash player if you’re using a browser like Safari where Flash is not included (as it is with Chrome). While Safari is probably the best browser for Mac users, Flash doesn’t play particularly nicely with it.
You may also have success by locking down Flash, or even removing it entirely if you’re not really using it. The browser extensions block Flash by default, with the ability to toggle it off or on. If you want to remove Flash altogether, run the Adobe Flash Player Install Manager and click Uninstall. Digging a Little Deeper Others have had success in removing kernel extensions, modules of code which are able to perform low-level tasks. Also known as “kexts,” the vast majority of extensions are installed by Apple as part of the core macOS environment. Some software will install third party extensions as drivers, or for controlling hardware.
One quick way to check if a third party kext is causing your kerneltask issues is to reboot your machine into safe mode. Restart your machine and hold the Shift key as it boots. Safe mode loads only the required kernel extensions, so if the problem doesn’t occur here it points to an issue with a third party kext.
Reboot your system as normal and launch Terminal. Then, run the kextstat command to see what kernel extensions are currently loaded. All Apple extensions will look like com.apple.etc while third party drivers will have the developer name in them, like com.paragon-software.filesystems and ch.tripmode.TripModeNKE to name a few. The best way to remove these is to remove the associated software. For some applications that will simply mean moving the application file to the Trash then inputting your administrator to make advanced changes. Others may include a PKG uninstaller file you need to run.
For the rest, head to System Preferences and look for any third party preference panes — Paragon’s NTFS driver hides the Uninstall option next to its settings. With OS X El Capitan, Apple introduced a new security feature which broke a number of third party modifications. System Integrity Protection, or SIP for short, stops applications from injecting code into Apple’s own apps, and writing to certain parts of the drive that There are more reasons to leave macOS' System Integrity Protection on than turn it off, but turning it off is easy. When All Else Fails The final solution here is a bit of a risky one: removing Apple’s own kernel extensions.
Doing this is not recommended. But if you’re at the end of your tether and you’ve tried everything else then it’s another option for you to try. The solution stems from a way back in 2012.
And though you’ll need to circumvent SIP, the fix still involves the same process. Rhys’ issue was related to heat management, his Mac shifting CPU focus to kerneltask in order to run low-level processes. This in turn would “cool” the system by limiting available processing power. Hmm, is it abnormal that the process 'kerneltasks' constantly sucks up 25% of my CPU? Kind of weird.
— Viktor Petersson? (@vpetersson) Another blogger by the name of using this method to solve his kerneltask woes. In his case, it was likely caused by a dodgy sound card. He later followed it up with updates for and, noting the only difference now is the requirement to disable SIP.
I’ve not personally tested this fix. If you’re interested in giving it a go, here’s what you’ll need to do:. Create a backup of your Mac using Time Machine or another backup solution. There are more reasons to leave macOS' System Integrity Protection on than turn it off, but turning it off is easy. by booting into Recovery mode and running the csrutil disable command.
Follow. Start by finding your Mac’s model using the systemprofiler -detailLevel mini grep 'Model Identifier:' command. Move and backup the file relevant to your model, as described. Reboot into Recovery mode and enable system integrity protection using the csrutil enable command.
Be careful! This is a last resort fix. Attempt it f you’re struggling to get anything done due to the problem. And it persists even after reinstalling your operating system. But you have been warned. You’ll also need to repeat the process after every major software update or operating system upgrade as Apple will restore the file you moved. Problem Fixed? Have you managed to fix kerneltask related problems using any of these methods? Tell us what caused your issues, and what you did to fix it in the comments below.
If you’re still having problems, leave a comment and we’ll try our best to help you fix the issue. Image Credit: Mark H. Evans via Flickr Explore more about:,.