Cannot Uninstall LonelyScreen on iMac

Howdy, hoping someone can help me. I'm nota Mac novice, nor a pro, but for the life of me, I cannot remove a screen mirroring program called LonelyScreen.


It is a similar program to Reflector which I also own.


The program comes with no uninstall feature, even going to the Application choosing show package contents etc. I have deleted it and emptied trash. I have re-installed and tried again.


There are no .kext files to be found anywhere.


If I look at my Mac's Audio Output settings, I still have "LonelyScreen" listed as an output device and I really want to get rid of it.


If anyone could be of help, I would greatly appreciate it.


Thank you kindly in advance!


PS I have emailed their support team twice. Zero response.


Posted on May 7, 2020 9:13 AM

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Posted on May 7, 2020 7:16 PM

3. Remove all components related to LonelyScreen AirPlay Receiver 1.2.8 in Finder

Though LonelyScreen AirPlay Receiver 1.2.8 has been deleted to the Trash, its lingering files, logs, caches and other miscellaneous contents may stay on the hard disk. For complete removal of LonelyScreen AirPlay Receiver 1.2.8, you can manually detect and clean out all components associated with this application. You can search for the relevant names using Spotlight. Those preference files of LonelyScreen AirPlay Receiver 1.2.8 can be found in the Preferences folder within your user’s library folder (~/Library/Preferences) or the system-wide Library located at the root of the system volume (/Library/Preferences/), while the support files are located in "~/Library/Application Support/" or "/Library/Application Support/".

Open the Finder, go to the Menu Bar, open the “Go” menu, select the entry:|Go to Folder... and then enter the path of the Application Support folder:~/Library

 Search for any files or folders with the program’s name or developer’s name in the ~/Library/Preferences/, ~/Library/Application Support/ and ~/Library/Caches/ folders. Right click on those items and click Move to Trash to delete them.

  Meanwhile, search for the following locations to delete associated items:

  • /Library/Preferences/
  • /Library/Application Support/
  • /Library/Caches/

Besides, there may be some kernel extensions or hidden files that are not obvious to find. In that case, you can do a Google search about the components for LonelyScreen AirPlay Receiver 1.2.8. Usually kernel extensions are located in in /System/Library/Extensions and end with the extension .kext, while hidden files are mostly located in your home folder. You can use Terminal (inside Applications/Utilities) to list the contents of the directory in question and delete the offending item.

4. Empty the Trash to fully remove LonelyScreen AirPlay Receiver 1.2.8

If you are determined to delete LonelyScreen AirPlay Receiver 1.2.8 permanently, the last thing you need to do is emptying the Trash. To completely empty your trash can, you can right click on the Trash in the dock and choose Empty Trash, or simply choose Empty Trash under the Finder menu (Notice: you can not undo this act, so make sure that you haven’t mistakenly deleted anything before doing this act. If you change your mind, before emptying the Trash, you can right click on the items in the Trash and choose Put Back in the list). In case you cannot empty the Trash, reboot your Mac.


Tips for the app with default uninstall utility:

You may not notice that, there are a few of Mac applications that come with dedicated uninstallation programs. Though the method mentioned above can solve the most app uninstall problems, you can still go for its installation disk or the application folder or package to check if the app has its own uninstaller first. If so, just run such an app and follow the prompts to uninstall properly. After that, search for related files to make sure if the app and its additional files are fully deleted from your Mac.

Automatically uninstall LonelyScreen AirPlay Receiver 1.2.8 with MacRemover (recommended):

No doubt that uninstalling programs in Mac system has been much simpler than in Windows system. But it still may seem a little tedious and time-consuming for those OS X beginners to manually remove LonelyScreen AirPlay Receiver 1.2.8 and totally clean out all its remnants.

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May 7, 2020 2:17 PM in response to design39media

Boot into Safe Mode (How to use safe mode on your Mac - Apple Support) by booting with the Shift key held down and check there to see if the problem persists.  Reboot normally and test again.

NOTE: Safe Mode boot can take up to 10 minutes as it's doing some system cache cleaning, volume verifying and directory repairing. 

Next, you might try moving this preference file to the Desktop, reboot and then check the system prefs again:



NOTE: you may have to reset all of the various system prefs if this solves your problem. If not solved then put the file back replacing the new one and reboot.



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Cannot Uninstall LonelyScreen on iMac

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