Hey, I'm trying to play some old games *The Quest for Glory series by Sierra* and I keep getting the following error: 16 bit MS-DOS Subsystem <path name to the file I'm trying to use> The NTVDM CPU has encountered an illegal instruction. CS:c000 IP:00ac OP:ff ff ff ff ff Choose 'Close' to terminate the application. [close] [ignore] I used to be able to play these games on windows XP before but I recently built a new computer and have all new pieces. I've checked several other pages involving the NTVDM issue and have done my best to do what I can but whenever I try to open the games I get that problem. I've replaced the NTVDM.exe file with a new version of it to make sure that it was corrupted and am now confused. Yes I am aware that I can use DosBox but I really, really don't want to if that's at all possible. Lastly, I tried doing the SFCSCAN but I don't actually have the CD used to install my OS *mine was not working apparently so I used the computer shop's* Any help would be GREATLY appreciated.