How to update username and password in Apache NiFi Windows ?

[#1]

is there anyway to change username and credential for Nifi in Windows ? 
there is a command in Documentation to change it but I guess it works only in Linux

[#2]

Well you have two sets of files, one for windows and one for linux. If you go ahead and open the nifi.cmd File, you can see that you can run the file with the arguments set-single-user-credentials and with the username and password in quotes:
nifi.cmd set-single-user-credentials "username" "password"

if %RUN_COMMAND% == "set-single-user-credentials" (
rem Set credentials with quoted arguments passed to Java command
set "CREDENTIALS=^"%~2^" ^"%~3^""

[#3 · Accepted solution]

Thanks. Everything works fine after restarting my PC