If you want to change your Windows PIN (login password or lock screen password), you can follow these steps:
Press + I to open "Settings";
Go to "Accounts" - "Sign-in options";
Or open it directly via shortcut: Sign-in options
Select "PIN (Windows Hello)" - "Change PIN";
You need to enter your old PIN:
Password Change Tips
Use strong passwords, including letters, numbers, and symbols;
Change your password regularly;
Avoid using the same password for multiple accounts;