When Parallels Desktop updated its codebase with version 17.1.0, it integrated strict local authentication checks to handle trial periods and licensing validation. PD Runner 0.3.8 became a "hot" utility because of its elegant workaround:
Walk you through the for troubleshooting the helper tool. pd runner 038 hot
Press and type your administrator password to authorize the change. Relaunch PD Runner. 2. Handling Developer Certificate Warnings When Parallels Desktop updated its codebase with version 17