Activate Windows 2008 Server via phone

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You’re attempting to activate Windows 2008 using the online option but receive an error due to being behind a firewall or proxy.

Assuming you’ve entered your product key, you can manually run the Windows Activation Client from the command prompt.┬áIssue the below command and it will start the activation client in phone activation mode.

Access command prompt, type the below command and hit enter.

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