Direct3D Disabled on Windows7 64bits

January 21, 2012 at 13:22:45
Specs: Windows 7, 4gb
Hello everyone, I have a lenovo t420 with windows 7 64bit. For some reason, direct3d is disabled with aplications that run under 32bits.

When I check dxdiag, all directX features appear as: not available. However, when I swicth dxdiag to 64bits mode, all the information is listed properly and hardware acceleration is enabled.

I checked in countless sites and always come down to this registry key:

HKEY_LOCAL_MACHINE\SOFTWARE\Wow646432\Microsoft\ Direct3D\Drivers

There's supposed to be a key named "SoftwareOnly" wich I should be able to set up to 0 in order to solve the issue. Problem is, I have no such key on the Drivers folder.

I'm at the end of my rope here and any and all help would be greatly appreciated!

Tks again


See More: Direct3D Disabled on Windows7 64bits

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#1
January 21, 2012 at 13:35:49
Try reinstalling the video drivers:

http://support.lenovo.com/en_US/res...


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#2
January 21, 2012 at 13:39:31
I should have explained a bit further, I have actually installed the latest drivers (2 times to be precise) as well as updating DX.

This is definitely not a drivers issue, I can actually go into the graphics chip settings and mess with some 3d settings (aniso, vsync, etc) and I actually have aero running.

This is windows disabling dx for 32bits aplications and I'm sure it has something to do with that registry key that I cant seem to find.


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