Command Prompt Service Unavailable: Troubleshooting Checklist
When you open Command Prompt and see 'Service unavailable' or 'The requested service is not avail...
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You try to connect to a remote server with Putty on port 22, but you get 'Connection refused'. Th...
Command Prompt Port Allocation Troubleshooting Checklist
When a service or application fails to start with a message like "port already in use" or "addres...
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When Windows Update fails with a DNS error, it usually means your PC can't resolve the domain nam...