hey whats up

so i try to use ms-dos and my computer says c:\windows\system*2\command.com
c:\windows\system*2\autoexec.nt. the system file is not suitable for running ms-dos and microsoft windows app.ication

how do i fix this of should i just throw my computer out?!?!?!?!
P.s. im a total noob when it comes to this kinda crap but im hoping to learn form u guys