Outlook Error Codes

How to Fix Outlook Error 1200 and Send/Receive Error 0x80040115

Ayan Masood Oct 21, 2026 869 views

Question details

The user needs to resolve an issue where Outlook displays error 1200 and send/receive error 0x80040115 after replacing hardware or modifying Windows.

How to Fix Outlook Error 1200 and Send/Receive Error 0x80040115

Product: Microsoft Outlook
Device & OS: Windows
Scenario: Attempting to sync or access emails after making changes to the computer's motherboard or installing Windows updates.
Observed behavior: Outlook fails to send or receive emails, prompting a 'Something went wrong' message accompanied by error codes 1200 and 0x80040115.

Before you start

Make sure you have your current Microsoft 365 account email and password handy, as you will need to sign back into your work or school account.

Solution 1Recommended

Disconnect and Reconnect Your Work or School Account

This is the most effective solution for resetting corrupted local account tokens caused by hardware or Windows updates.

When you change key hardware components like a motherboard, the local security tokens used by Windows to authenticate Microsoft 365 accounts can become invalid. Disconnecting the account forces Windows to generate a fresh token.

Open Windows Settings

Click the Start button and select the Settings gear icon, or press the Windows Key + I on your keyboard.

Navigate to Access work or school

Click on 'Accounts' in the left-hand menu, then scroll down and select 'Access work or school'.

Disconnect the account

Locate the work or school account associated with your Outlook profile. Click on it, select 'Disconnect', and confirm your choice.

Sign back into Outlook

Reopen the Microsoft Outlook application. When prompted, enter your credentials to sign in and authenticate the account again.

Disconnect and Reconnect Your Work or School Account

Safe Process: Disconnecting your account in Windows Settings will not delete any of your emails or server data.

Solution 2

Clear Outdated Credentials from Windows Credential Manager

Use this solution if reconnecting your account does not immediately resolve the send/receive errors.

Free Microsoft Office alternative

Experience a Seamless and Error-Free Productivity Suite with WPS Office

If you frequently encounter complex account sync errors, subscription issues, or application crashes in Microsoft Office, consider switching to WPS Office. It provides a highly compatible, lightweight, and completely free alternative for your daily document management without the hassle of persistent credential errors.

1. Download WPS Office: Visit the official WPS website to download the free installation package for your operating system.
2. Install the Suite: Run the installer and follow the simple on-screen instructions to set up the software in minutes.
3. Open Your Documents: Launch WPS Office and open your existing Office files directly, enjoying seamless formatting and tools.

Fully compatible with Microsoft Word, Excel, and PowerPoint file formats.Lightweight installation with incredibly fast startup times.No complex account sync errors tied to Windows hardware changes.Clean, familiar user interface requiring zero learning curve for existing Office users.

microsoft office alternative - wps office

Frequently Asked Questions

Why does Outlook Error 1200 happen after a motherboard change?

Error 1200 typically occurs because Windows uses hardware-bound security features like the TPM (Trusted Platform Module) to secure your login tokens. Changing the motherboard invalidates these tokens, meaning Outlook can no longer authenticate your Microsoft 365 account securely until it is reset.

Will disconnecting my work or school account delete my Outlook emails?

No. Disconnecting your account via Windows Settings simply removes the local authentication token from your device. All your emails, contacts, and calendar events remain safely stored on the cloud server and will sync back once you sign in again.

What should I do if error 0x80040115 continues after clearing credentials?

If the send/receive error persists after you have disconnected the account and cleared the Windows Credential Manager, the issue might be on the server side. You should contact your organization's Microsoft 365 IT administrator to verify the status of your account and ensure your device isn't blocked.

Microsoft Office Error Codes