[SOLVED] Windows 7: AdGuard for Windows cannot be started/installed - d3dcompiler_47.dll is missing

[Anonymer-User]

Hello,

I have Windows 7 Pro 64bit and suddenly I neither can start, nor can I install, uninstall or update AdGuard anymore (regardless if latest stable release or beta), everytime I try to start or install it, I get a message saying that AdGuard can't be installed due to a missing d3dcompiler_47.dll file ?!
Please help!

 

[Boo Berry]

That's strange, I didn't know Adguard required DirectX.

Got a screenshot of the error?

 

[Anonymer-User]

It's german saying: setup.exe - system error: The application cannot be started, because D3DCOMPILER_47.dll is missing on this computer. Install the application again, to solve the problem.

 

[vasily_bagirov]

@Anonymer-User try using this tool to uninstall Adguard and then install it again: https://adguard.com/en/how-to-delete-adguard.html

 

[Anonymer-User]

I have already done that - 'standard uninstall', should I try 'advanced uninstall'?

 

[vasily_bagirov]

@Anonymer-User yes, do it, please.

 

[Anonymer-User]

I found the resolution / fix for my problem! (KB4019990) - it installs the missing D3DCompiler_47.dll file (version 6.3.9600.18611) in the corresponding system folder
(System32 - Filesize: 4.1 MB / SysWOW64 - Filesize: 3.39 MB).

https://support.microsoft.com/en-us/help/4020302/the-net-framework-4-7-installation-is-blocked-on-windows-7-windows-ser

This issue occurs when the computer does not have the update for D3DComplier (D3DCompiler_47.dll) installed.

It affects only Windows 7, NOT Windows 8/8.1 or 10.


For all others who have the same problem, here the direct links for the KB4019990 Microsoft patch:

For Windows 7 SP1 x86 (32bit): http://go.microsoft.com/fwlink/?LinkId=848159

For Windows 7 SP1 x64 (64bit): http://go.microsoft.com/fwlink/?LinkId=848158

Meanwhile I'm quite sure the reason why this problem occured was the installation of the new Unigine 3D Benchmark 'Superposition'. https://benchmark.unigine.com/superposition

While I had this problem before I fixed it, I was not only not able to start or (re-)install AdGuard, but I also was not able to start the installed Garmin update application (Garmin Express) for my car navigation by the way.

 

[vasily_bagirov]

@Anonymer-User thanks for the detailed update, glad you solved the issue.

 

[axanh]

encounter this problem too .. now solved thanks