Hi Robert Smith
Welcome to the Microsoft Q&A Forum!
If it is a Microsoft Surface Dock and the dock shows no power LED and no USB power even when not connected to a computer, this points to a hardware or power failure of the dock (or its power supply), not a Windows or driver issue.
At this stage, the appropriate next step is to contact Microsoft Surface Support for warranty or replacement options:
How to contact Microsoft Surface Support:
- Go to https://support.microsoft.com
- Select Surface → Surface accessories → Surface Dock
- Choose Get help / Contact support
- Sign in with your Microsoft account
- Enter the dock’s serial number (printed on the dock)
- Follow the prompts for repair or replacement.
Hope you'll get this sorted out!