How to Use a Rootkits on Windows Os???Since Persistence Being Detected by Av!

how to use a rootkits on windows os,by uploading it from a meterpreter session?or how are they used to get backdoor?or do they just hide processes?what are some good rootkits?i dont know much about it,just trying a backdoor that should connect back like persistence but the persistence script is being detected by Av!!!so is rootkit an alternate option?what would you suggest?