Question: how to check if you have oem windows?
Answer: Open a Command Prompt or PowerShell and type in Slmgr –dli. You can also use Slmgr /dli. Wait a few seconds for the Windows Script Manager to appear and tell you which license type you have. You should see what edition you have (Home, Pro), and the second line will tell you if you have Retail, OEM, or Volume.