Forum Discussion

Copper Contributor

Apr 15, 2025

Microsoft® Outlook® for Microsoft 365 MSO (Version 2503 Build 16.0.18623.20178) 32-bit

I have had an issue with emails being slow to open. Sometimes as long as 10 seconds. I am part of a 5-member crew that shares an email. Each one of us works a different shift. We also have individual...

Rupertmurd

Iron Contributor

Apr 22, 2025

Method 1: Repair Office Installation
1. Open Control Panel → Programs and Features.

2. Find Microsoft Office 365 → tap Change.

3. Select Quick Fix → Repair and restart your computer when finished.

Method 2: Update to the latest version
1. Open Outlook → File → Accounts → Update Options → Update Now.

2. Make sure the latest version is installed.

Method 3: Disable Add-ins
1. Open Outlook → File → Options → Add-ins.

2. In the Management Options below, select COM Add-ins → Go to.

3. Uncheck all the add-ins → Tap OK and restart Outlook.

4. Enable the add-ins one by one and check the source of conflict.

Method 4: Create a new Outlook profile
1. Close Outlook and open Control Panel → Mail.

2. Tap Profile → Add to create a new profile.

3. After setting up email accounts, set them as default and restart Outlook.