NTDVM CPU illegal instruction

chinglaguna

Distinguished
Apr 13, 2009
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everytime i start my computer, this message pops out: 16 bit MS-DOS Subsystem

C:\WINDOWS\system32\cmd.exe
The NTVDM CPU has encountered an illegal instruction.
CS:0541 IP:0206 OP:63 68 61 72 73 Choose 'Close' to terminate the application.

i dont know how to fix it and it's really annoying and i fear it can eventually harm my computer..please help me