Password Recovery
From Free Knowledge Base- The DUCK Project: information for everyone
Computer password recovery is a subject of very large scope. Here we will break it down into various areas and help direct you to the Wiki resource that best fits your specific need.
Windows Operating System: User Password
You can boot from the Hiren's Boot CD Restored Edition and use it to reset the password for your Microsoft Windows installation. Versions of Windows supported depends on what release of Hiren's that you are using.
Android Device: Google Password
See Change the Google Account Password on an Android Device
Linux Operating System
Resources here include Emergency Boot Recover Root Password or Fix Mounting Issue.