XINPUT1_4.dll

I've been using Osiris cheat source and Gerasss' injector since I started cheating in CSGO and everything works fine in both Windows 10 and 7 but the recent update on the Osiris update i think it was 07.0819 when I use the cheat in Windows 10 the cheat works fine but when I use it on my Windows 7, after pressing enter on the injector, it says XINPUT1_4.dll is missing (in CSGO). I've never encountered this problem before so if anybody has an idea on how I can resolve this, hit the reply box