Using Classic Outlook on Windows for personal email, calendar, and contact management
Hello Steve Alexis,
Thank you for reaching out to the Microsoft Q&A forum.
I am sorry to hear about the trouble you've had with Outlook crashing and the frustration you've experienced trying to find help.
To provide you with the most targeted solution, I need to gather a couple of key details from you:
- Which specific application are you using? Are you on Classic Outlook for Windows (part of a Microsoft 365 subscription or a one-time purchase) or the new Outlook for Windows (the free app from the Microsoft Store)?
- When did the crashing problem first start?
Important Check for a Known Issue:
A known issue was reported starting around January 15, 2026, related to a specific Windows update (KB5074109) causing freezing and crashing for some users with POP accounts in Classic Outlook for Windows. To check if this is affecting you:
- Open the Settings app, go to Windows Update, and select Update history.
- Look at the list of recent updates. Do you see KB5074109 installed?
Please let me know the answers to the questions above.
- If you have KB5074109 and use Classic Outlook, please refer to this official Microsoft article which details the issue and the current workaround: Classic Outlook POP account profiles hang and freeze after Windows 11 update to KB5074109 - Microso….
- If you do not have that update, or use the new Outlook, please try starting Outlook in its diagnostic mode. For Classic Outlook, hold down the Ctrl key while starting the app. For the new Outlook, you can access troubleshooting options via its settings in the Windows Start menu.
I also want to address your concern about contacting support. I understand how frustrating it can be when you need to speak with someone. Please be assured that if our troubleshooting here doesn't resolve the issue, I am happy to provide you with clear steps to access the live chat service for personal accounts. My goal is to help you find a solution as efficiently as possible, starting with these initial diagnostics. For now, let's focus on identifying the cause of the crash through the steps above.
Once I have this information, I can offer you the specific next steps to resolve the crash.
I look forward to your response.
Please note that our forum is a public platform, and I modified your question to hide your personal information in the description. Kindly ensure that you hide any personal or organizational information the next time you post an error or other details to protect personal data.