Unable to change password

If you cannot modify the security rules, it means you are not an Admin. And if you remove the 2, it will no longer meet the security criteria. Replace the 2 with another digit, it should work.

The 0 in the middle is the number 0 and not the letter O. Is there a way to become an admin? If not, well, too bad, thank you anyway for your answers^^.

Is this your personal PC? If so, you should be an admin by default ...
right-click on computer > manage > users and groups > groups > administrators / And there you will see who is admin or not.

No, it's my desktop PC; my session is indeed in the list of administrators.

Hello, I understand what interferes with the modification, it's the history and the minimum duration of the password.

yes, that's why we need to modify the strategy...

Yes, except that I don't have access to it, it's grayed out.

Nope! Can we get a screenshot of what’s grayed out? Because if you’re not an admin, you can’t access the computer management. Since you are, there’s no reason why you shouldn’t be able to modify that. Unless you’re at work and your employer has deployed a security policy via Active Directory that prevents you from changing these options, in which case there’s absolutely nothing to be done, except for managing to get into the Admin group of the AD...