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Nov 13, 2017  Some MacOS High Sierra users have reported issues with wireless networking after updating their Mac to the latest system software version. The problems may range from difficulties connecting to wi-fi networks, dropping wi-fi connections (particularly after waking from sleep), sluggish wireless speeds, and other frustrating connectivity problems with wi-fi networks.

  • Launch the App Store app, then look for macOS Sierra in the store. (Here’s a link.) Click on the Download button, and your Mac will download the installer to your Applications folder. If it automatically launches after download, quit the installer. Sierra beta installer app folder sierra gmKeep the installer in the Applications folder.
  • Recent OS X's, e.g. High Sierra, have System Integrity Protection turned on by default; these commands, even with sudo, do NOT remove the wanted files/directories. You have to turn off SIP before; the easy way is to boot in recovery mode, start the Terminal, type these commands (of course 'killall Dock' is not needed) and reboot in normal mode.

While trying to open an app on High Sierra, sometimes it freezes or stays suspended in “launching mode”. This can happen to any app and there are many potential reasons. But before we figure out the most common of reasons, you’ve got to understand what disk permissions are and how they work.

Permissions are what determines whether an item is to be read, written to, or executed by the OS. They are set automatically once an application is first installed. In some cases, permissions are associated to privileges as they determine which user can and cannot open or edit particular files.

At the OS level, permissions determine which items the operating system- or specific parts of it- can be accessed, modified and which applications can do this.

If permissions go awry for some reasons, they may affect certain operations and cause certain apps to fail to launch. It is also the case with most computer problems that result in permission errors.

Apps in High Sierra that are not working properly could also result from a virus infection. Viruses can corrupt and confuse the operating system and make app launching more difficult. It is also likely that the app that you are trying to launch is not properly constituted, the current app version you are using is incompatible with the latest version of Mac OS, or the app was downloaded over an unreliable internet connection; hence they are missing important files.

How to Fix Apps in High Sierra That Are Not Working Properly

The first thing that you want to do when your computer starts acting up is to clean it with a Mac repair tool, such as Tweakbit Mac Repair tool. Why clean it first?
Well, you never really know what the issue with a PC is until you run diagnostics first. And because it would take an inordinate amount of time for anyone to troubleshoot all potential problems, the best solution is to use a repair tool that traverses the entire OS, finding faults and repairing them. Tweakbit Mac Repair, will do that for you.

1. Repairing Disk Permissions


File permissions not set correctly is a pretty common problem, especially with older OS versions. One way to correct them is by repairing the permissions.

Apple’s Disk Utility tool is a very effective tool when it comes to repairing permissions. But before using it, it is advised to back up your drive first. The reason for this is not that the Disk Repair tool will cause any new problems, but it could be the case that permissions are already damaged that an attempt to repair them could kick the drive over the edge.

To repair disk permissions with the Disk Utility tool, follow these steps:

  1. Open Disk Utility located in the Utilities folder in the Applications folder.
  2. Select the startup disk from the list of volumes.
  3. Click the First Aid tab.
  4. To repair permissions, click Repair Disk Permissions.

Take note that the Disk Utility is able to repair file permissions because there is a corresponding receipt in /var/db/receipts. These receipts tell the Disk Utility what the permissions should be. But it’s worth noting that not all installers include a receipt of the files they install.

2. Scan Your System for Viruses

If OS apps are not working properly, or your Mac is freezing while in use, then a virus scan may be called for. Actually, you should always do a malware scan anytime your computer experiences an issue. Viruses cause all sorts of problems, including but not limited to preventing certain apps from launching.

Find yourself a good antivirus program, launch it, and let it do its work without interruption. Delete whatever files it finds to be incompatible with your system.

3. Reinstall the Problematic App

If you are certain that your Mac freezes only when you launch a specific app, then you should consider deleting that app, downloading its latest version and reinstalling it.
Follow these steps to delete an app on Mac OS:

  1. Open Launchpad by clicking on it in the Dock or from the Applications folder.
  2. If you don’t see the app that you want to remove on Launchpad, type its name on the search field.
  3. Press and hold the Option key, or click and hold on any apps until the icons start to wiggle.
  4. Click on the delete icon on the app that you want to delete. Confirm your action by pressing Delete again.
  5. If there is no delete option or the delete icon does not hover over it, then it means that it cannot be removed or the app didn’t come from the App Store. If this is the case, then you can Finder to delete the app.

Using Finder to Delete an app

  1. Locate the app in Finder. You can also go to the Applications folder because most apps are located there.
  2. Drag the app to Trash or choose to move the file to Trash.
  3. You might be prompted to give the username and password of your Mac before being allowed to delete your app.

Sometimes, the steps above don’t entirely remove an app on Mac. If this happens, you may need to delete the remnants of the app from the Library folder. Here is how you do that:

The main program executable is drivedetect.exe. The software installer includes 44 files and is usually about 1.23 MB (1,291,223 bytes). Software

  1. Open Finder.
  2. Hold the Alt (Option) key and choose GO from the drop-down menu.
  3. You will find the ~/Library folder below the Home folder.

From the ~/Library folder, you can now scroll down and find files related to the app that you want to delete. Drag them to the Trash. It is important to exercise caution while in the ~/Library folder because you might delete some important files that could add more issues to the ones your computer is already experiencing.

4. Restart Your Computer in Safe Mode

Safe mode is a barebones version of your operating system. In this mode, all but the essential parts of the OS are running. Starting your computer in Safe mode could help you run your app safely without interference because there will be no other apps running in the background, and which may cause compatibility problems. This is how you launch your Mac in safe mode:

  1. Start the Mac. Hold and press the Shift key.
  2. Release the Shift key once the login window appears.

If you know of other ways of fixing apps in High Sierra that are not working properly, please share them on the comment section below. Also, if you have questions on any of the procedures described above, feel free to contact us.


If you’re running into errors and your system is suspiciously slow, your computer needs some maintenance work. Download Outbyte PC Repair for Windows, Outbyte Antivirus for Windows, or Outbyte MacRepair for macOS to resolve common computer performance issues. Fix computer troubles by downloading the compatible tool for your device.

Check compatibility

You can upgrade to macOS High Sierra from OS X Mountain Lion or later on any of the following Mac models. Your Mac also needs at least 2GB of memory and 14.3GB of available storage space.

MacBook introduced in late 2009 or later
MacBook Air introduced in late 2010 or later
MacBook Pro introduced in mid 2010 or later
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.

Make a backup

Before installing any upgrade, it’s a good idea to back up your Mac. Time Machine makes it simple, and other backup methods are also available. Learn how to back up your Mac.

Get connected

It takes time to download and install macOS, so make sure that you have a reliable Internet connection. If you’re using a Mac notebook computer, plug it into AC power.

Download macOS High Sierra

For the strongest security and latest features, find out whether you can upgrade to macOS Catalina, the latest version of the Mac operating system.

Adobe cc 2019 download app mac. If you still need macOS High Sierra, use this App Store link: Get macOS High Sierra.

Begin installation

After downloading, the installer opens automatically.

High Sierra App

Click Continue and follow the onscreen instructions. You might find it easiest to begin installation in the evening so that it can complete overnight, if needed.

High Sierra Mac

If the installer asks for permission to install a helper tool, enter the administrator name and password that you use to log in to your Mac, then click Add Helper.

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Allow installation to complete

Download High Sierra App

Please allow installation to complete without putting your Mac to sleep or closing its lid. Your Mac might restart, show a progress bar or show a blank screen several times as it installs both macOS and related updates to your Mac firmware.

Learn more

High Sierra Mac App Store

  • If you have hardware or software that isn’t compatible with High Sierra, you might be able to install an earlier macOS, such as Sierra or El Capitan.
  • macOS High Sierra won’t install on top of a later version of macOS, but you can erase your disk first or install on another disk.
  • You can use macOS Recovery to reinstall macOS.