If Windows produces a protection error with the terms NTKERN or NDIS mentioned in it, there are three main causes of it. I will start with the most common cause.
Ever since the AMD K6 processors reached a speed of 350MHz, Windows 95 has had problems with fast processors. It also affected Pentium 3 and 4 processors running at 1GHz or faster. A software patch/fix that rectified bad programming in Windows 95 corrected the problem, which did not affect Windows 98 or later versions of Windows.
To apply the software patch you have to install a slower processor or underclock the fast processor (see the Motherboard page for information on setting the processor's speed) to run at a speed that does not cause the problem (under 350MHz for a K6 processor, and under 1GHz for the Pentium processors).
Another processor-speed error occurs with Windows 98 with processors faster than
