How to manually check for updates on Razer Synapse 2.0
Razer - Razer Surround is integrated within Razer's Synapse 2.0 application, offering virtual 7.1 surround sound and storing individual audio signatures in the cloud for easy access anytime and on any systems.
Razer Synapse 2.0 Support
How to perform a clean re-installation of Razer Synapse 3 & 2.0 on Windows