Can't install or uninstall program on Windows 10

[Jayhawker32]

Hi,

I'm getting a System32\d3d9.dll when trying to install the newest version of Matlab and the same error while trying to uninstall the old version of Matlab. I can still run the program as of right now I just can't install or uninstall.

This is the error I receive when I go to reliability history in Windows.

Edit: I have tried a clean boot and then running the installer but encounter the same issue. This was performed with my Anti-virus paused.

Thanks

 

[jojesa]

Hi,

I'm getting a System32\d3d9.dll when trying to install the newest version of Matlab and the same error while trying to uninstall the old version of Matlab. I can still run the program as of right now I just can't install or uninstall.

This is the error I receive when I go to reliability history in Windows.

Edit: I have tried a clean boot and then running the installer but encounter the same issue. This was performed with my Anti-virus paused.
Thanks

Maybe you just need to register the dll file.
Open CMD as admin
Type 'regsvr32 /u d3d9.dll' and hit enter to un-register the dll file.
Type 'regsvr32 /i d3d9.dll' and hit enter to re-register the dll file.
Type 'exit to close the command prompt window.
Reboot and try to uninstall the program associated with d3d9.dll error.
Are you getting a specific error?

 

[Jayhawker32]

Hi,

I'm getting a System32\d3d9.dll when trying to install the newest version of Matlab and the same error while trying to uninstall the old version of Matlab. I can still run the program as of right now I just can't install or uninstall.

This is the error I receive when I go to reliability history in Windows.

Edit: I have tried a clean boot and then running the installer but encounter the same issue. This was performed with my Anti-virus paused.
Thanks

Maybe you just need to register the dll file.
Open CMD as admin
Type 'regsvr32 /u d3d9.dll' and hit enter to un-register the dll file.
Type 'regsvr32 /i d3d9.dll' and hit enter to re-register the dll file.
Type 'exit to close the command prompt window.
Reboot and try to uninstall the program associated with d3d9.dll error.
Are you getting a specific error?

I haven't pinned it down to anything specific other than what I posted, which was from the the reliability history. I finally solved it by doing a clean boot as well as booting into safe mode with networking. I will try re-registering d3d9.dll for the sake of my sanity though.

Edit: When I run the command you suggested it tells me the module failed to load and to check that it's a valid DLL or OCX file

 

[jojesa]

Edit: When I run the command you suggested it tells me the module failed to load and to check that it's a valid DLL or OCX file

When a program that shares a .DLL with other applications is uninstall, it might delete a shared .DLL too
Your system should have several versions of 'd3d9.dll' in several locations inside the Windows folder.
Do a search for that dll file and see if you find any copies.
Copy one of the newest versions (the 32-bit version) and place it in the 'C:\Windows\System32' folder
Then follow the previous steps to un-register and re-register the dll file.

 

[ac13044]

install DIREXT X

https://www.microsoft.com/en-gb/download/details.aspx?id=35

 

[Jayhawker32]

install DIREXT X

https://www.microsoft.com/en-gb/download/details.aspx?id=35

I tried that solution first and I have DirectX installed, so when I run that program it just tells me it's already installed and doesn't do anything.