Hi éryam faubert,
Just to narrow this down, are you still able to sign in to Windows normally, and does the admin password prompt only appear when you try to launch the game? If so, does the prompt show your current account or the name/email address of another account?
If you normally sign in with a PIN, keep in mind that your PIN and account password are separate. You can check Sign-in options on the sign-in screen to see whether a PIN recovery option is available.
If the administrator account belongs to someone else, such as a family member or whoever originally set up the PC, you’ll need that person to authorize the request. I’d also avoid third-party password removal or bypass tools, since they could put your account or files at risk.
If none of the recovery options in the AI Answer work and there isn’t another administrator account you can access, resetting Windows may be the remaining option. Before doing that, I’d recommend backing up any files you can still access and making sure you have your BitLocker recovery key if device encryption is enabled.
Hopefully one of the options above helps, but if you’re still stuck, let me know what you see when the admin password prompt comes up and I’ll help you from there.