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#21
The Key in use is the infamous Lenovo Stolen Key - which leaked even before Windows 7 launched, and was recalled from all sources. It has never been legally used on ANY computer.
The Key is of the OEM_SLP type - which requires that the motherboard have a matching SLIC table with the manufacturer's own certificate to allow self-activation of the OS on every boot.
Retail motherboard do not and cannot have such a SLIC table.
Your motherboard is a retail one.
The installation has been enabled by use of a hacker's Activation Exploit, and is therefore counterfeit by definition.
If this Key is in use it your father's place of work, then all such installations are counterfeit.
This is NOT an upgrade - it is NOT a case of 'missing files' - it is piracy, pure and simple.