Microsoft Windows 8 Professional 32/64-bit (English)
Microsoft Windows 7 Professional with Service Pack 1 32/64-bit
Microsoft Windows Vista Enterprise with Service Pack 1 32/64-bit (English)
Have 1 key of each, best offer gets it.
If they key that you used is invalid, provide proof within 2 days of the transaction and I will return the whole offer,due to the nature of this transaction, I'm only accepting Games as gifts so I can return them
Windows 8.1 Key (English)
Microsoft Windows 8 Professional 32/64-bit (English)
Microsoft Windows 7 Professional with Service Pack 1 32/64-bit
Microsoft Windows Vista Enterprise with Service Pack 1 32/64-bit (English)
Have 1 key of each, best offer gets it.
If they key that you used is invalid, provide proof within 2 days of the transaction and I will return the whole offer,due to the nature of this transaction, I'm only accepting Games as gifts so I can return them
FAQ
How do I collect my OS?
Here