Operating System: Windows 7 Home Premium SP1 64bit Nature Of The Problem: The sticker on the bottom of the laptop has some characters erased which is why i am unable to activate my windows.At the command prompt, type the following command, and then press Enter: slmgr -ipk xxxxx-xxxxx-xxxxx-xxxxx-xxxxx. This is a new feature of Windows and it enables you to activate your copy of Windows via a free phone call. Open Settings app, navigate to Update & security > Activation. You will be given a toll-free phone number -> Use this number to get your confirmation ID -> Activate. To activate your Win 10 by phone, follow these steps: Windows logo key + R -> Type ‘Slui 4’ into the Run box -> Enter.It just comes up with message number 32777 (unable to establish a connection with the activation server.United States (English) Reasons for the Unable to Reach Windows Activation Servers Windows 10 This issue has also occurred on Windows 10 if the motherboard was replaced after successfully activating Windows on your PC. Unable to activate windows Pia nimetumia njia ya Cmd nako nimeambiwa.