So, the background is vollgender: Some time ago I bought a laptop with Windows 10. However, I was too slow, so I configured about a week ago a PC from used parts via eBay, facebook etc, firmly in the assumption that the Windows key, on my laptop is a retail key, I installed Windows on my PC. However, I have only an OEM key on my laptop and here is my question, would it be possible to delete Windows from the hard drive of my laptop and release the key to enable it on my PC?