i put a game on my computer, the game some how was placed on my j drive( thats my jump drive slot). it some how turned that drive into a dvd drive-its worse. i run system recovery to see if that would have fixed the problem but it didn't. after system recovery was none, i restarted my computer and this message was presented"ntldr is compressed. please press ctrl+alt+ delete to restart. when i restart is same message appears. what does ntldr is compressed means? how can it be fixed?