This post mainly help you unlock Windows 8 password when you locked out of computer.(Forgot or lost Windows 8 password)

1. How to Unlock Windows 8 Login Password if Forgot or Lost?
Most of our Windows 8 users need to unlock Windows 8 password, likely
because we have forgotten or lost it. Here I would like to tell you that forgot
Windows 8 password is very common, but at least it is not difficult to unlock it.
Of course, you have no need to worry about it.
When comes to Windows-provided way to reset Windows 8 password, the only
stuff you can apply is Windows 8 password reset disk. Unfortunately, most of us
probably don’t have a password reset disk either because we didn't know the
feature existed or we never thought we'd forget our Windows 8 password.
Fortunately, there are many kinds of Windows 8 password unlocker tools that
you can free download from another computer and then use to unlock password
Windows 8 on your computer. Below are the top 3 Windows 8 password
unlocker tools available today.
Top 1: Ophcrack
Ophcrack is the most popular Windows 8 password unlocker as it is free and
open source. Passwords can be recovered automatically without installing
anything on the computer. You only need to download and burn the OPHCRACK
Live CD and boot the PC using the Live CD. If you are a newbie, it’s not
recommended as it requires some computer skills and the password recovery
rate is not guaranteed.
Top 2: Windows Password Recovery Tool
Windows Password Recovery Tool is an easy-to-use tool designed for resetting
Windows local account or domain passwords on any Windows system.
Passwords can be reset in 3 minutes, no matter how long and complicated your
Windows 8 password is. Besides password recovery function, it even can change

2. any local admin/user/domain admin password, and create a new Administrator
account via CD/DVD or USB drive. It also works with Windows
7/Vista/XP/2008/2003/2000.
Strengths:
Easy (3 steps: Download – Burn – Reset);
Fast (Only 3 minutes even less);
Safe (Read-only and non-destructive design, no any data loss or damage).
Top 3: Windows Password Key
Windows Password Key is a professional Windows 8 password recovery
program to unlock lost Windows 8 password with ease. It also works with
Windows 7/Vista/XP/2008/2003/2000.This Software creates a password reset
CD/DVD or USB Flash Drive that works at the time of booting process. You can
unlock forgotten Windows 8 password with just 3 steps:
Windows 8 Password unlocker Tools Aren't Necessary if You're Proactive!
These Windows 8 password unlocker tools really come in handy when you need
them but there's a much easier way to access your account if have password reset
disk, which must be created before you forgot Windows 8 password.
A win 8 password reset disk is a special disk you can insert in your PC during the
logon process that will allow you to reset your Windows 8 password. You will
need to create this disk before you lose access to your account! Have difficult in
creating one: Visit: How to Create a Windows 8 Password Reset Disk?
All in all, it is no longer hard or difficult to unlock password Windows 8. You
can feel relax even if you forgot Windows 8 password by using Windows 8
password unlocker tool.
Source: How to Unlock Windows 8 Password?