FIX : File Picker UI Host is not responding in Mail App

Today, let us discuss a common issue that is seen with the Mail application. At times, you might have seen that when you try to attach a file in the email, the file picker opens but freezes, and the only way to close it is by closing the application itself.

We know how annoying this can be. That is why we have come up with fixes that will help you get rid 0f this issue with simple steps.

Fix 1: Re-register the Mail Application

Step 1: Open the Run Terminal in your System with the keys Windows+R

Step 2: Type powershell and press the keys Ctrl+Shift+Enter to open the PowerShell with Admin rights

 

 

Powershell



 

 

Step 3: In the User Access control window that opens up asking for permissions, click on Yes.

Step 4: Now type the below command and hit Enter

Get-AppXPackage -AllUsers -Name microsoft.windowscommunicationsapps | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register “$($_.InstallLocation)\AppXManifest.xml” -Verbose}

 

 

Re Register Command

 

 

Step 5: Once the command completes execution, Close the PowerShell

Now, check if the File picker UI starts working

Fix 2:Run the SFC Scan

Step 1: Open Run Dialog with Windows Key and 

Step 2: Enter cmd and press the buttons Ctrl+Shift+Enter to open the Command Prompt with Admin Rights

 

 

Cmd

 

 

Step 3: In the User Access control window that pops up asking for permissions, click on the Yes button.

Step 4: In the command prompt window that opens, type the below command and hit Enter

sfc /scannow

 

 

Sfc Scannow

 

Step 5: Once the scan finishes, Restart the Computer

See if this helps. If not, try the next fix listed.

Fix 3: Perform a Clean Boot

Many users have reported that performing clean Boot of their system helped them resolve the issue.

For details on how to perform a clean boot, refer to the link How to Restart PC in Clean Boot Mode in Windows 10

Fix 4: Reset the File Explorer

Step 1: Open the Run Terminal

Step 2: Type sysdm.cpl and hit Enter

 

 

Sysdm Cpl In Run

 

 

Step 3: In the appearing window, go to the Advanced tab

Step 4: Under the Performance section, click on the Settings button

 

 

Performance Settings

 

 

Step 5: Now, go to the Advanced tab

Step 6: Under the Processor scheduling section, under the Adjust for best performance of option, choose Programs

Step 7: Under the Virtual memory section, click on the Change button

 

 



Performance Options Virtual Memory

 

 

Step 8: In the appearing window, tick on the Automatically manage paging file size for all drives option

Step 9: Click on the OK button

Step 10: In the Performance Options window, click on the Apply button and then the OK button.

Step 11: In the System Properties window, click on the Apply button followed by the OK button.

Step 12: Restart the System

 

That’s All

We hope this article has been informative. Thank you for Reading.

It would be great if you could comment and let us know which of the above fix helped in your case.