Hello Clem,

Please follow below steps to resolve the issue

 Step 1 :Sign out of MSN Explorer

 Step 2:Right click on MSN Icon
 
 Step 3:Click on Properties
 
 Step 4:Click on Shortcut
  Type %USERPROFILE% under start in.  
 
 Step 5:Sign in to MSN Explore ----Issue Resolved

For more assistance please follow the below link to contact the MSN Technical support team.
https://support.microsoft.com/en-us/contactus/msn/explorer-tech-services/

Thanks
MSN Support Team