windows 10 Anniversary Update

I switched to windows 10 recently.. It was all good after installation, had the drivers and clean installation of league. It was working fine. A day ago I updated my windows with update named as "Windows 10 feature update 1607", didn't know it was same as anniversary update until after it was installed. I tried league and was and still am getting bug splat crashes every few minutes whether on legacy client or alpha. I tried to uninstall update (couldn't find it in installed update list). reinstalled league and still crashed. googled it and found there are some direct x issues. I downloaded dx9 package, installed fine but crashes still exist. reinstalled league again.. nothing changed any ideas, thank you
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