Not Launching

I installed Valorant on a external hard drive and I tried running it, but it can't launch, I moved Riot to the same hard drive but the result is still the same, can anyone help? It keeps saying, Something Unusual Happened while trying to launch Valorant, I've tried all the reccomended steps and I'm lost. I think its because Vanguard is not in my System Tray, can someone help me fix this?