Microsoft 365 Outlook closes after opening

Question

Microsoft 365 Outlook closes after opening

Dean Lucantonio 0

I have 2 different windows PC's running windows 11, in the last 2 days when attempting to open outlook, it closes almost immediately. I have followed all the suggested help steps, start in safe mode, create a new profile, create a new Forms2 folder, clear the local cache, reinstalled office and nothing has worked. Its happening on 2 PCs

Hornblower409 5,825 Reputation points

2026-03-01T20:16:43.9833333+00:00
@Dean Lucantonio
You may need to contact Microsoft Support directly so they can remote into your PC and examine your environment.

MS 365 - Subscriber Support
https://www.microsoft.com/en-us/microsoft-365/support

All others
https://support.microsoft.com/home/contact

Chat Support

Open a browser to https://support.microsoft.com/en-us/home/contact

Tell us your problem: "Classic Outlook crashes in Safe Mode"

[Get Help] {Scroll down to the bottom of the page} [Sign in to Contact Support]

Sign in with any Microsoft account

Products and services: "Microsoft 365 and Office"

Category: "Outlook"

[Confirm]

Choose a support option -> "Chat with a support agent in your web browser"

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Hornblower409 5,825 Reputation points

2026-03-01T20:16:43.9833333+00:00

@Dean Lucantonio
You may need to contact Microsoft Support directly so they can remote into your PC and examine your environment.

MS 365 - Subscriber Support
https://www.microsoft.com/en-us/microsoft-365/support

All others
https://support.microsoft.com/home/contact

Chat Support

Open a browser to https://support.microsoft.com/en-us/home/contact

Tell us your problem: "Classic Outlook crashes in Safe Mode"

[Get Help] {Scroll down to the bottom of the page} [Sign in to Contact Support]

Sign in with any Microsoft account

Products and services: "Microsoft 365 and Office"

Category: "Outlook"

[Confirm]

Choose a support option -> "Chat with a support agent in your web browser"

Answer 1

Alvise Cervellati 3,790 Independent Advisor

Hi Dean, Welcome in Community

OK, we need to investigate the problem.

First of all, when you created the new profile, did Outlook not launch without an email account?

Open Event Viewer (by pressing WIN + X) and see if you find any useful links under System Logs > Applications or System and post them below.

Do the same with Reliability History, which you can find by typing "Reliability" in the search bar from Start.

Do you have Windows 10 or 11?

Let me know

Elvis

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Microsoft 365 Outlook closes after opening

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