older games installed its own directx9c will that affect earlier version directx11.2

spi_ajay

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May 31, 2012
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hello,
i have fx6300, asus r9 280 dciitop, 12gb ram, m5a97 asus r2.0 mobo, 1tb seagate 7200 rpm, cooler master hyper 212x, monitor samsung s22b370h. asus xonar dx sound card.5.1 creative speakers

i want to know if by mistake i install directx9c on new version directx11.9, do i have to reinstall graphics driver again ?
even after the old directx 9c installation . dxdiag directx diagnostic tool is still showing directx version 11. i hope i need not roll back or install for that matter