Invalid License. Reason code = Missing DLL: dxgi.dll Funtion: CreateDXGIFactory.

Does running this as Admin help?

C:\Program Files (x86)\Origin Games\Plants vs Zombies Garden Warfare\__Installer\directx\redist\DXSETUP.exe

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http://www.microsoft.com/en-us/download/details.aspx?id=35

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SFC /SCANNOW

https://support.microsoft.com/kb/929833

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Update Graphics Drivers

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If it's Windows 8 you can "Reset" or "Refresh" the PC quite easily.  Otherwise on Win7 you could try just rolling back to an early restore point.

I found a solution by searching the internet.

The OS for my computer is Windows Vista 64bit Home Premium.

Here is the solution from internet:

Install Vista Service pack 2 ---- > http://www.microsoft.com/en-us/download/details.aspx?id=17669 [microsoft.com] (This is for vista-64bit) 

Run DXsetup in the Origin\ Plants vs Zombies Garden Warfare \__Installer\directx\redist\DXsetup.exe

Then Install DX 11 -----> http://www.microsoft.com/en-us/download/details.aspx?id=4390 [microsoft.com] (64bit)

Restart.

However, now I have a new error when clicking the "Play" button in Origin client:

“nvidia geforce 9300ge gpu does not support directx 10.0 which is required”.

Any suggestions?

http://www.nvidia.com/download/driverResults.aspx/77224/en-us

http://www.nvidia.com/Download/index.aspx?lang=en-us

All I did was located the dxgi.dll on my system and replaced it with one i found on DLLFixer.com or something and it worked. 64 BIT WINDOWS XP-10, and one for 32 BIT WINDOWS XP-10

A dxgi.dll file is a DirectX Graphics Infrastructure.