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Missing "mtrr.vxd" driver

Posted on 1997-09-18
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Last Modified: 2013-12-16
I have been getting a boot-up error saying that a virtual driver "mtrr.vxd" (which may have something to do with directx) is missing.  Using DejaNews I discovered 226 people with the same problem.  The driver is NOT on my system's installation CD, and it is not on any program or game CD that I own.  What is it and where can I get it?

As a kludge, I copied one of the smaller VXDs to the name
"mtrr.vxd". I no longer get any boot-up errors and I don't detect any problems, but as I am having a near impossible time installing directx, I want to solve this (mtrr.vxd) problem first.
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Question by:shenry
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by:shenry
ID: 1750668
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smeebud earned 50 total points
ID: 1750669
Go to
HKEY_LOCAL_MACHINE\config\system\currentcontrolset\services\VxD\MTRR
and see if mtrr.vxd is in your registry. If so, delete it. if my assuming that you have installed Directx5 or you are going to. As far as I can tell, ver 5, aside from being very buggy, doen't need mtrr.vxd.
Search your registry for it
1. Click the Start button.
2. Open the RUN box.
3. Type REGEDIT. That will open the registry.
4. CTRL+F will open the search box.
5. Enter your search phrase, in this example it will be gif, or jpg, one at a time.
6. You'll see the associations on the right side of the screen.
7. The F3 key will continue the search until you find what your looking for.
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by:shenry
ID: 1750670
Thanks for suggesting that I remove it from the registry, I'll try it and see what happens.  I still don't know the purpose of the driver, and since over 150 people have posted an identical problem on newsgroups in the past few months, anyone with an answer will be quite a hero.
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