ntvdm uses 99% cpu

J

Jared Epp

Just upgraded (well did a fresh install) from 98 to XP
and my old DOS-based programs use 99% CPU and the system
slows to a crawl when they are open. Also, even if I
just run command.com and hold a key down (like L or enter
or something) CPU usage is about 80%.

The issue did not occur on 98 and the programs are not
that resource intensive, i.e. they will run on a 486 and
my current computer's clock is 2.2GHz. Task manager
shows ntvdm.exe using 99% CPU but only 4 MB of RAM.

I tried setting priority to low from task manager, this
helps somewhat but not as much as you would think (the
CPU usage is still 99% but the slowness is helped a
little). I also have heard of tamedos.com but would like
to try other things first.
 
J

Jared Epp

Well thanks for the links, they mostly confirmed stuff I
already know about ntvdm, I was hoping for a solution to
my 99% cpu problem.
 

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