The black window appears when launching UgCS Desktop

The problem should be solved if installing and running the software using administrative rights.

Please use these links for reference:

1. https://manuals.ugcs.com/docs/installation-under-local-user-account
2. https://manuals.ugcs.com/docs/granting-user-permissions-on-windows-10

Please also note that all the necessary permission should be given to the UgCS in the respective Firewall and Antivirus software.