Outlook classic default

Question

I am using Outlook classic (win 11, 64 bit),

When I click apps it shows Outlook new as default.

How do I make Outlook classic as default?

Answer 1

Solved problem by deleting NEW version. System now recognizes CLASSIC as default.

Thanks for responses

Answer 2

Thanks for reply

My problem is that I have outlook classic installed but the system apps show NEW one as default.

I have an extension to share pages which I need to use my installed classic.

Any way to reset this easily?

Answer 3

Hi, jfirstlast

Thanks for your response and glad to hear that everything works well for now and  please click Yes to help us improve the support experience and help others with similar concerns.

Best Regards,

Cece | Microsoft Community Support Specialist

Answer 4

Dear jfirstlast

Thanks for your further clarification!

If you don't want to fall back to an older version using a run script, in New Outlook, if you have seen the toggle switch, you can select the toggle switch to switch back to Classic Outlook and New Outlook will close. For more details, please refer to Run new Outlook and classic Outlook side-by-side - Microsoft Support

Please feel free to share with me on any developments about this issue!

Best regards

Cece-MSFT | Microsoft Community Support Specialist

Answer 5

Dear jfirstlast

Welcome to Microsoft Community. 

I realize that you want to revert back to Classic Outlook for Windows. You can use PowerShell code to achieve this goal.

Here are details:

---

#Define the current username

$username = $env:USERNAME

# Define the folder path to operate on

$folderPath = "C:\Users\YOURUSERNAME\AppData\Local\Packages\microsoft.windowscommunicationsapps_8wekyb3d8bbwe\LocalState\Migration"

# Define the path of the file to delete

$fileToDelete = "$folderPath\settings.json"

# 1. Delete the specified file (if it exists)

if (Test-Path -Path $fileToDelete) {

Remove-Item -Path $fileToDelete -Force

Write-Host "File $fileToDelete has been deleted."

} else {

Write-Host "File $fileToDelete does not exist."

}

# Get the username of the current logged-in user

$currentUser = [System.Security.Principal.WindowsIdentity]::GetCurrent().Name

# 2. Get the Access Control List (ACL) of the folder

$acl = Get-Acl -Path $folderPath

# Define a new access rule to deny write access for the current user

$denyWriteRule = New-Object System.Security.AccessControl.FileSystemAccessRule($currentUser, "Write", "Deny")

# Add the deny write access rule to the folder's ACL

$acl.AddAccessRule($denyWriteRule)

# Apply the modified ACL to the folder

Set-Acl -Path $folderPath -AclObject $acl

# Output the result of the operation

Write-Host "Write access denied for $currentUser on $folderPath"

---

The code performs two actions. You can also perform these actions manually if your code does not perform them correctly.

1. deletes the settings.json file inside C:\Users\YOURUSERNAME\AppData\Local\Packages\microsoft.windowscommunicationsapps_8wekyb3d8bbwe\LocalState\Migration
2. Add a deny write rule to the Migration folder security permissions.

Sincerely hope that everything can work well!

Best regards

Cece-MSFT | Microsoft Community Support Specialist