Failure to install Outlook on my Samsung S26+

Hi @Jerry McDonald,

Based on your description, I have seen similar reports from other Samsung users, especially on the Galaxy S25 and S26 series, and there have also been recent reports on newer Galaxy devices with similar sign-in or sync behavior in Outlook and other Microsoft mobile apps. 

In similar cases reported after the Samsung April 2026 security update, one commonly shared workaround has been to reset Android System WebView first. You can try the following: 

1. Go to Settings and search for Android System WebView. Then open App details in store and select Remove updates. 
2. Restart the device. 
3. Go back to Settings, search for Android System WebView again, open App details in store, and then select Update. 
4. If Android System WebView does not appear in the app list, go to: 
   Settings > Google > All services > System services > Android System WebView.  
5. Restart the device once more. 
6. Open Outlook again and try signing in.  

Additionally, as a further troubleshooting step, you can also try resetting the app PIN and then waiting about an hour before attempting sign-in again. 

If the problem still persists after that, since this is a work or school or business account, it would be best to contact your IT admin so they can check whether any device registration, app protection, or compliance requirements are affecting authentication on the new phone. 

• For detailed instructions on how to get support, please refer to Get support - Microsoft 365 admin.  
• In case you do not know who is your IT admin, kindly refer to this article: How do I find my Microsoft 365 admin? - Microsoft Support.  

Please keep me updated on the results. If the issue is still occurring, I will be happy to look into it further. Thank you for your patience.  

Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.