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LunaMoo · (This post was last modified: 02-16-2017 09:54 AM by LunaMoo.)

This thread was more about PPSSPP not working on win XP(and btw on topic ~~XP support will be officially dropped in near future;p~~ edit: apparently Henrik changed his mind/found another way) than DX11 being disabled on win 7.

But either way to answer the question DX11 backend currently is not finished, it relies on texture format which only works on win 8+ hence disabled on 7, it also lack a few features and post processing shaders.
All of this might be solved in the future, but for now if you absolutely need to test it, you will need to install newer OS like the latest one which apparently still is free for those that need it.
If you're desperate you could actually force it on 7 by editing ppsspp.ini and changing GPUBackend to 2, but then you will also have to attach VS debugger(which means installing VS 2015;p) to avoid crash when creating graphic context. No idea why that even works and since I have dual boot anyway I also didn't bothered to test how well it works that way;p.