"Either there is no default mail client or ..."

[cnewtonne]

Hi ...
I keep getting this error dialogue every time I start UR for the first time. Once dismissed, UR works just fine. But, it does show up with every launch.

My default email client on Surface Pro 4 Windows 10 is MS Outllook as seen in the image below. However, for work reasons, I have to use the 64-bit version of Office.

How can I resolve this error message, please.

Thanks