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Windows Mail Error Code 0x80040b0b: 6 Ways to Fix it
Learn what to do to get back to adding emails on the Mail app
5 min. read
Updated onOctober 4, 2023
updated onOctober 4, 2023
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Key notes
The Mail & Calendar app allows you to add multiple email accounts and manage them all from a unified interface. However, some users get the error 0x80040b0b while trying to add an account for some reason.
This issue can be due to multiple factors, like issues with the Mail app and your email address. Thankfully, despite being a pretty annoying error, you can easily fix it with the solutions in this guide.
What is error code 0x80040b0b?
The error 0x80040b0b usually occurs when users try to add an account in the Mail & Calendar app. In some cases, this Mail app error causes an existing email to disappear, and users will be unable to add them.
The error 0x80040b0b is especially prominent in Outlook and Hotmail email accounts, as reported by users. It also makes it difficult for users to sync Mail in the app.
How to Fix the 0x80040b0b Mail App Error
1. Update the Mail app
Oftentimes, the 0x80040b0b mail error can be due to an outdated app. Updating the app from Microsoft Store should do the trick here.
2. Run the Windows Store Apps troubleshooter
In some cases, the error 0x80040b0b might be caused by glitches with the Windows Store. You can fix this by running the Windows Store Apps troubleshooter and applying the recommended fixes.
3. Run an SFC scan
Corrupt system files can cause a series of issues, including the 0x80040b0b Mail error. You can fix this by running using the System File Checker tool.
4. Repair and reset the Mail app
According to some users, the error 0x80040b0b might be caused by problems with your version of the Mail and Calendar app. Thankfully, Windows has an option for repairing and resetting the app.
5. Reinstall the Mail app
Sometimes, theMail app might be working properlywith the error 0x80040b0b because of issues with the Mail app installation.
Reinstalling a fresh version of the app should get rid of the potential factors causing this problem.
6. Switch to a local account to reinstall the Mail app
In some cases, the error 0x80040b0b occurs when trying to add an email with Windows Mail occurs because of the Microsoft account email, which is the default that is configured in the Mail app.
Many users have been able to rectify this by switching to a local account, reinstalling ordisabling the Mail app, and adding the email after.
With this, we can conclude this detailed guide on how to fix the 0x80040b0b error message in the Mail & Calendar app.
While this error can be pretty frustrating as it stops you from adding an email account or syncing and refreshing your accounts on Mail app Windows 11 and 10, it is not the most difficult to fix, as we have shown in this guide.
So, you only need to follow the instructions therein, and things should be back to normal. In the same vein, If theMail app is not showing HTML codes, check our detailed guide to fix it.
Ola-Hassan Bolaji
Windows Hardware Expert
A Computer Engineering graduate, he has spent most of his life reading and writing about computers.
He finds joy in simplifying complex topics into simple solutions for PC users. The quality of his work and providing step-wise tested and proven solutions to PC issues are all that matter to him.
Away from computers, he is either reading or watching football!
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Ola-Hassan Bolaji
Windows Hardware Expert
He’s a Computer Engineering graduate who has spent most of his life reading and writing about computers & operating systems.
