Probably, the issue would get fixed over the phone and you can go on with your installation of Windows 8.1 or Windows 10. If you are not satisfied with the methods posted above, you can always directly call Microsoft office by calling the number “18009365700” and describe exactly what error message you get in your Windows 8.1 operating system. Select Update & Security and open Activation tab.Press Windows key + I to open Settings.Method 4: Run Windows Activation Troubleshooter If updates are available, click the Install Updates button.The Windows Update dialog box will appear.Type “ update” into the search box and hit ENTER.Follow the steps in the Wizard to choose a restore point.Enter any administrator passwords (if prompted).In the search box, type “ System Restore” and hit ENTER.Follow the on-screen directions and activate Windows using your phone.
I was told by the answer desk team that even if restore my PC using windows 7 recovery disk I will not able to activate my windows 7. I bought PC from PCWorld with pre installed windows 7. So much for a free upgrade and talking about the new era of windows.
