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How to fix the New Outlook “something went wrong” screen

This generic splash error means the app's background rendering engine crashed. Repairing or resetting it usually clears it. Jump to your situation below or work through the methods in order.

By Neeraj Singh ~5 min Updated Jun 2026 87% found this helpful
Error message
Something went wrong. We're sorry, but Outlook can't start.
Summary

The New Outlook something went wrong screen is a generic splash error shown when the app's background rendering engine crashed or it could not load your mailbox view. It is rarely a server problem and usually a local app state issue, a stale cache, an outdated build, or a glitched session. The most reliable fixes are to Repair and then Reset Outlook (new) from Settings, which reload the app cleanly, along with updating it through the Microsoft Store. Clearing the cached app folders helps when reset alone does not, and a quick sign out and back in refreshes a stuck session. Because the message is deliberately vague, working through repair, reset and update in order is the fastest route to whichever underlying glitch caused it.

What this error means

New Outlook is a web-based app with a rendering engine that draws your mailbox. When that engine crashes or cannot load the view, the app cannot show you anything useful, so it falls back to a catch-all something went wrong screen rather than a specific error.

Because it is a catch-all, the cause is usually whatever local state tripped the engine: a stale cache, an old build, or a glitched session. Repairing and resetting the app reload it from a clean state, which is why those steps resolve most cases without needing to know the exact trigger.

Common causes

The background rendering engine crashed.
A stale or corrupt app cache.
An outdated New Outlook build.
A glitched or stuck session.
A temporary service or network hiccup.
Expert insight

“Something went wrong is Outlook shrugging at you, it is a catch-all for the rendering engine falling over. Since it will not tell you the real cause, I just reload the app cleanly: Repair first, then Reset from Settings, and make sure it is updated. One of those almost always clears it. If not, a quick sign out and back in shakes loose a stuck session. It is rarely the server, so the fixes live on your machine.”

How to fix it

Method 1

Repair Outlook (new)

1Open Settings, Apps, Installed apps, find Outlook (new), Advanced options, and click Repair.
2This fixes the app without removing data.
3Reopen Outlook.
Method 2

Reset Outlook (new)

1If Repair does not help, choose Reset on the same Advanced options page.
2This clears the app data and reloads it clean.
3Sign in again afterwards.
Method 3

Update through the Microsoft Store

1Open the Microsoft Store, Library, and update Outlook (new).
2An outdated build often causes this splash error.
3Restart the app.
Method 4

Sign out and back in

1Sign out of the account in Outlook, close the app, then reopen and sign back in.
2This refreshes a stuck session.
3Test the mailbox view.

The something went wrong screen is a catch-all for a rendering-engine crash, so reload the app cleanly: Repair first, then Reset from Settings, and update it through the Store. A sign out and back in clears a stuck session when reset alone does not.

Frequently asked questions

What does something went wrong mean in New Outlook?
It is a generic splash error meaning the app's background rendering engine crashed or could not load your mailbox view. It is usually a local app state issue, not a server problem.
How do I fix it?
Open Settings, Apps, Installed apps, Outlook (new), Advanced options, and click Repair, then Reset if needed. Also update the app through the Microsoft Store and sign out and back in.
Is this a server outage?
Rarely. It is almost always local, a stale cache, an old build, or a stuck session. If repairing and resetting do not help, check the Microsoft 365 service status as a final step.
What is the difference between Repair and Reset?
Repair fixes the app without removing your data, while Reset clears the app data and reloads it clean, after which you sign in again. Try Repair first.
Why update the app?
New Outlook updates frequently, and an outdated build often triggers this splash error. Updating through the Microsoft Store can resolve it on its own.
Will resetting delete my mail?
No. Your mail is stored on the server. Reset only clears the local app data and cached view, then you sign in again to reload your mailbox.

Still not working?

If Repair, Reset and an update do not clear it, switch the New Outlook toggle off to confirm classic Outlook works, which tells you the account is fine and the issue is the New Outlook app; a reinstall from the Store is then the next step. You can also submit your error to us for a tailored fix.

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