Hi Shadowblitz0001,
Did you check this -9999 Unanticipated host error, A Resolve in this Windows Arena Section of the Audacity Forum? If you did already and that was no cure another exploration can be visited providing you disclose what you have accomplished to alleviate the issue. A solution may be found else where in the Win10 environment or a possible exploration of the Audacity program itself. Help the Forum to help you. Thanks Shadowblitz0001.
Respectfully, ZARDOZ