NTVDM CPU error when installing Visual C++

By Tainted
Sep 23, 2003
  1. I have been trying to install Visual C++, and as soon as I enter the serial number, and click NEXT, an error comes up that says:

    The NTVDM CPU has encountered an illegal instruction.
    CS:04c3 IP:832f OP:c7 54 df e1 00 Choose 'Close' to terminate the application.

    This is damn annnoying, especially as I can't install the software that I spent a hell of a lot of money on.
  2. Phantasm66

    Phantasm66 TS Rookie Posts: 5,734   +8

    First of all, this error is reported during installation of this product here:


    and here:


    Where it was proposed that certain install paths are not liked. For some reason, perhaps, the default install path is not liked by it. That's one possible explanation.

    Which version of Windows are you using? Do you have the latest service pack installed?

    What version of Visual C++ is this? From Visual Studio 6, Visual Studio 2003 .Net, etc?

    If using Windows 2000 or XP, are you installing using an account with administrator rights?

    Answer my questions from above, please.
  3. Tainted

    Tainted TS Rookie Topic Starter

    My Information

    I don't think Its a problem with the installing DIR, it looks a bit more serius than that (but hey, I'm not an expert).

    OS: Windows XP Home (I haven't got any updates, apart from the MSBLAST one)

    Product Version: Visual C++ 6.0 Standard
  4. Phantasm66

    Phantasm66 TS Rookie Posts: 5,734   +8

    I think I've got it:


    It might not be described in the exact same way, but it sounds VERY similar. Basically, the setup for the Virtual DOS Machine failed because you have a corrupted 16-bit subsystem. See the instructions on the page for a fix.
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