couldn't download a required dependency

my game had connection issue after i installed it the first time. so i looked up some solutions online and it said to delete vanguard and open valorant again and vanguard would start reinstalling automatically again. so i deleted vanguard and now vanguard is not installing. it seemed to work for other. i dont know if its my game or my pc. i already contacted support yesterday but thay haven't replied yet. so pls help.