Before you change your password, please review our article, Requirements for secure passwords.
Most password change dialog boxes require you to type the new password twice.
Change Password from the Tools
menu if you're on a PC. If you use a Mac, look for Change Password under Options.System Preferences. Click on the icon labeled Accounts.
Click on the button that says Change Password.Change
password.
Enter the old password, then your new password twice.

Ctrl, Alt and Delete keys
simultaneously. Click on the Change Password button on the lower left side of the dialog box. Or from the
Start menu, open the Control Panel, double-click the
User Accounts icon, select your account then click the Change Password button.
Tools menu, select Options. Click on the
Security tab. Type in the new password. Warning: If you forget the password for a document, it cannot be
reset!

See also: