Either there is no default mail client or the current mail client cannot fulfill the messaging reque

[mikesang]

I get a weird message every time I start my PC. eMailClient is shown in my settings as the default but this keeps popping up.

"Microsoft Office Outlook
Either there is no default mail client or the current mail client cannot fulfill the messaging request. Please run MICROSOFT OUTLOOK and set it as the default mail client."

eMailClient is running as normal, so I cannot understand why this message appears.

Any ideas ??