Split from this thread.

Welcome to Microsoft Community forum and I am here to assist you in opening your emails on Windows Live Mail. Please be informed that the error message you have receive is a generic one which means that there is not enough memory that is why you cannot open the email. To troubleshoot this, follow the steps below:

 

1. Restart the computer (this is to ensure that Live Mail is fully shut down, and that none of it's components are in use when the computer starts)

 

2. Click Start, type CMD but do not press enter

 

3. You will see cmd.exe in the search results, right click on it and select Run as Administrator - type your admin password if asked, and if UAC pops up asking premission, allow it

 

4. You should now see the command prompt, with the following displayed:

 

Microsoft Windows [Version 6.1.7600]

Copyright (c) 2009 Microsoft Corporation. All rights reserved.

 

C:Windowssystem32>

 

5. Copy the following (Ctrl+C)

 

esentutl.exe -d "%userprofile%AppDataLocalMicrosoftWindows Live MailMail.MSMessageStore"

 

Note: the "" are necessary

 

6. Right click in the command prompt Window, and select Paste, so you now see the following:

 

 

Microsoft Windows [Version 6.1.7600]

Copyright (c) 2009 Microsoft Corporation. All rights reserved.

 

C:Windowssystem32>esentutl.exe -d "%userprofile%AppDataLocalMicrosoftWindows Live MailMail.MSMessageStore"

 

7. Press Enter. esentutl will now defragment the Live Mail database file

 

8. Once done, you can close the command prompt, and restart the PC again

 

Tried this fix and now Live Mail will not open at all.  I cannot access my emails.

Long winded error message, that you cannot copy and paste which is a dumb idea, that says in effect another program is access the mail file.

I'm running Windows 10.