Fix Windows Live Mail Error 0x800C013E Could not write this message to disk

Fix Windows Live Mail Error 0x800C013E Could not write this message to disk

After installing the Windows 10 Feature Update 2004 (Build 19041.xx), you may be unable to send or receive emails using Windows Live Mail Version 2012. The error message may look like the following:

Unable to send or receive messages for the [name] account. An unknown error has occurred.

Server: 'mail.server.com'
Windows Live Mail Error ID: 0x800C013E
Protocol: POP3
Port: 110
Secure(SSL): No

Server: imap.googlemail.com
Username:
Protocol: IMAP
Port: 993
Secure(SSL): 1
Code: 800c013e

Server: imap-mail.outlook.com
Username: [name]@hotmail.co.uk
Protocol: IMAP
Port: 993
Secure(SSL): 1
Code: 800c013e

Also, when you preview an email in Windows Live Mail, you may see the following error message(s):

Message could not be displayed

Windows Live Mail encountered an unexpected problem while displaying this message. Check your computer for low memory or low disk space and try again.
Could not write this message to disk

Resolution [Fix]

As always, please make sure to backup your email storage folder and Windows registry before trying this fix.
This fix worked perfectly for me with the latest Windows 10 Pro 64 bit in April 2021. Awesome! Hopefully this will work for you as well.

To fix the error 0x800C013E in Windows Live Mail in Windows 10 v2004 and higher, follow these steps:

1. Close the Windows Live Mail window.
2. Start the Registry Editor (regedit.exe)
3. In the Registry Editor, go to the following branch:

HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows Live Mail

4. Create the following DWORD values and set the data for each value to 1.

Value name: RecreateFolderIndex
Value type: REG_DWORD
Value data: 1

Value name: RecreateStreamIndex
Value type: REG_DWORD
Value data: 1

Value name: RecreateUIDLIndex
Value type: REG_DWORD
Value data: 1

5. Restart Windows Live Mail.

This should resolve the Windows Live Mail error 0x800C013E. The three registry values may be reset to 0 automatically, and can be left that way. The above registry edit also fixes the corrupted account display issue in WLM (with multiple accounts) that surfaced in Windows 10 2004.

Ready To Partner?