Product: HP Pavilion Laptop PC 14-dv0000 (9WF40AV)
I had bought the laptop last year in August and I had got the Microsoft office home and student version with it. I had activated it successfully.
But then once I had to connect the pen drive and then it asked me to update the laptop. The laptop got formatted and then I had to re sign in. I signed in with the same account and installed office again. But now when I try to activate it, it says that it is already installed in another PC.