Hello
Please Reset Internet Explorer
https://support.microsoft.com/en-us/help/923737/how-to-reset-internet-explorer-settings
Make sure profile info is up to date like First Name and Last Name, DOB, Country and Region.
https://account.live.com/editprof.aspx?amru=https://account.microsoft.com/profile&mkt=en-US
Check the Anti-virus if that is blocking the MSN installation
Restart the computer
If Issue persists 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