Hi @leefedex,
Thanks for sending your dxdiag info.
It seems that you have splashtop WiredX Display driver installed on your primary machine.
spacedesk and splashtop’s Virtual Display driver cannot coexist with spacedesk driver.
On Splashtop Wired XDisplay Agent window -> Advanced, just uninstall the Virtual Display driver.
spacedesk should work now after you uninstall this driver.
.
