This application is not compatible with the insalled operating system. Upgrade to Windows 98SE, 2000 or better

This is the message I got today when decided to install Oblivion GOTY on windows 10.

I see people have found sollution. Would you care to advise me how to fix this? Thanks.

have already turned UAC off.

Is this the securom error? Since securom isn't supported under W10 I would like to know if there's a fix myself. I ended up repurchasing the game on a Steam sale (for the thousands of hours I have in the game, another $10 seemed worth it). But I still have my GOTY disc and probably other games with the same issue. The only other legal workarounds I've seen are self-signing a driver or dual-booting. Ironically I have no problems installing under Wine in linux.