How many computers can be activated by the XP serial number on the chassis?

Tehran's bird asked:

Hello, I recently found out that there is a genuine XP serial number on my Lenovo computer case. I don't know if this serial number can still activate XP system? Is this a genuine system?

Many brand machines are affixed with the serial number of the genuine operating system. If XP, it can be used to activate other computers, but your serial number should be the XP Home version, the actual use value is not large, and Now that XP is an old system, there are countless versions of various cracks, so don't worry too much. Here, let me say more, if it is the OEM serial number of Win7 computer, it can only be used on one computer, because it will bind the motherboard.