Quarantined File Disappeared From The Manager

Quarantine folder is missing Jump to solution. A while back I had a lot of files in the quarantine folder from running scans. I had to delete them manually from c: program files/mcafee/virus scan/quarantine. However since I did that, when I check quarantined and unwanted programs, there is never anything listed after I do a scan. How to Restore Windows Defender Quarantined / Removed Files in Windows 10 version 1803 (April 2018 update).

Some users have reported about Taskbar Icons Missing or Taskbar Icons disappearing in Windows 10. You will find below some of the methods to fix this problem.

Taskbar Icons Missing in Windows 10

In case of Dual Mode Computers (Tablet/Desktop), the problem of Missing Taskbar Icons ends up being mostly due to Tablet Mode being accidentally enabled on the device.

In most other cases, the problem of missing or disappearing Taskbar Icons can be fixed by Restarting File Explorer and Clearing the App Icon Cache.

If this does not help, you should be able to fix the problem by using other methods as provided below.

1. Disable Tablet Mode

If you are using a dual-mode computer, follow the steps below to disable Tablet mode.

1. Open Settings and click on the System icon.

2. On the next screen, click on Table Mode in the left-pane. In the right-pane, select Use Desktop Mode option.

Restart your computer and you should find the Missing Taskbar Icons back on your computer.

2. Restart Windows Explorer

Sometimes, the problem of Taskbar Icons Missing in Window 10 is due to Windows Explorer service not working on your computer.

1. Right-click on the Start button and click on Task Manager.

2. On the Task Manger screen, right-click on Windows Explorer and click on the Restart option.

After this you should be able to see the missing Icons back on the Taskbar.

Note: If you cannot find Windows Explorer entry, open any File or Folder on your computer and this will bring up the Windows Explorer entry on the Task Manager screen.

3. Clear App Icon Cache

If the App Icon Cache gets corrupted, it can lead to Taskbar Icons missing or disappearing from the Taskbar in Windows 10.

1. Right-click on the Start button and click on Run.

2. In Run Command window, type appdata and click on OK.

3. In AppData Folder, double-click on the Local Folder.

4. In Local Folder, right-click on IconCache.db and click on Delete.

Note: If you are unable to see IconCache.db, enable View Hidden Files option in File Explorer.

5. Close the File Explorer Window and Restart your Computer.

After the restart, you should find the missing Taskbar Icons back on your computer.

4. Remove Temporary Files

Quarantine Files Back

1. Right-click on the Start button and click on Run.

2. In Run Command window, type %temp% and click on OK.

3. Delete All the Files located in Temp Folder.

Restart your computer and see if the App Icons are back on the Taskbar.

5. Reinstall Taskbar Apps

1. Right-click on the Start button and click on PowerShell (Admin).

2. In Powershell window, type the following command and press the Enter key.

Get-AppxPackage -AllUsers| Foreach {Add-AppxPackage -DisableDevelopmentMode -Register “$($_.InstallLocation)AppXManifest.xml”}

This will reinstall and re-register all the default in-built Windows 10 Apps on your computer. Restart the computer and see if App Icons are now back on the Taskbar.

6. RUN SFC Command

1. Right-click on the Start button and click on Command Prompt Admin.

2. On Command Prompt screen. type sfc /scannow and press the Enter key.

If this does not help, try to repair system image.

7. Repair System Image

1. Open Command Prompt as Admin.

2. In Command Prompt window, type DISM /Online /Cleanup-image /RestoreHealth and press the Enter Key.

Close the Command Prompt window and see if System Icons are back on the Taskbar.


8. Use System Restore or Create New User Account

If a System Restore Point is available, you can roll back your computer to its earlier working state by using System Restore.

If a System Restore point is not available, you will have to Create a New Local User Account and start using this New User Account.

File Quarantine

File quarantine-aware applications that download files from the Internet, or receive files from external sources (such as email attachments), attach quarantine attributes.

  • Quarantine-aware applications include Safari, Messages, iChat and Mail.
  • These attributes include date, time, and a record of where the file was downloaded from.

When you open a file received through a quarantine-aware application, OS X warns you where the file came from. You receive an alert asking, 'Are you sure you want to open it?' You should click Cancel if you have any doubts about its safety.

If you have multiple user accounts on your Mac, the user account that downloaded the file is the only user account that can remove the quarantine attribute on a file. All other user accounts can open a quarantined file, but they are still presented with an alert asking 'Are you sure you want to open it?' every time they open the file.

Known malware check

Mac OS X Snow Leopard v10.6 and later also check for known instances of 'malware', or malicious software. When you open a quarantined file, OS X checks to see if it includes known malware. If so, an alert message similar to the following appears:

If you see '(file name) will damage your computer.' You should click Move to Trash.

If the file is a disk image, you should click Eject Disk Image and then delete the source file.

Tip: Click the Help icon in the lower left corner of the alert message for more information about malware.

Blocking web plug-ins

To help limit exposure to potential 'zero day' exploits from web plug-in enabled content, OS X also blocks specific versions of web plug-ins from functioning – including Java web apps, or Adobe Flash content. Typically an update to the web plug-in is available on the same day, or shortly after OS X blocks the web plug-in. Install the new update to restore web plug-in function.

Quarantined File Disappeared From The Managers


OS X Lion v10.7.5 and later include Gatekeeper, a technology that allows developers to sign applications. Signed applications normally don't present an alert when you download and open them. Internet files downloaded from other applications get file quarantine attributes but without date, time, and link of the file downloaded.

Quarantined File Disappeared From The Managerial

Advanced users only

You can toggle the ability of File Quarantine to receive updates from Apple about malware and web plug-ins.

Important: Deselecting this option disables the ability to identify new malware, and leaves your Mac vulnerable to new malware without notification.

OS X Mavericks

  1. Choose Apple () menu > System Preferences.
  2. Click the App Store icon in the System Preferences window.
  3. Select or deselect the option to 'Install system data files and security updates.'

OS X Mountain Lion or earlier

  1. Choose Apple () menu > System Preferences
  2. Click the Security & Privacy icon in the System Preferences window.
  3. If the padlock in the lower left corner of the Security & Privacy pane is locked, click it and enter an administrator name and password.
  4. Click the Advanced button.
  5. Select or deselect the 'Automatically update safe downloads list' setting to toggle File Quarantine updates.