Question about Microsoft Windows XP Home Edition

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NTVDM CPU has encountered and illegal instruction.

Blank black screen pops up with:


Another screen pops up with it saying:

16 bit MS-DOS Subsystem
The NTVDM CPU had encountered and illegal instruction
CS:0568 IP:011e OP:63 65 20 2d 20 Choose 'Close' to terminate the application

More of the black screens keep popping up. When I hit 'Close' it goes away, but comes back soon after. It seems random and I haven't downloaded anything new or done anything different.

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