Before beginning the restoration process, it is crucial that
all of your important data be backed up on an external hard drive, or on a
cloud storage service. All personal data (documents, photos, music)
will be
deleted during the recovery process.
Windows 8.1: Reset to Factory Settings
Windows 8.1 has a built-in feature that enables you to
quickly and easily reset your computer to its factory default.
To begin, open the Charms bar from right down corner
on mouse hover or click
and click on Settings
> Change PC settings > Update and Recovery:
Under the
Recovery section, you will see two options:
Refresh your PC
without affecting your files and
Remove everything and reinstall Windows.
The latter option will completely reset your computer, deleting files and any
personal information you have saved:
Once you select your option, you computer will begin its restoration process. The restoration process will take 1 or 2 hours times as per RAM and CPU performance to keep patience and wait for next step.
then select Language and Region Settings as in shown in picture.
Next step is to agree with license term.
then skip wireless network connection setting
then personalize and enter you PC Name and then click Next.
Then Just a moments windows will appear.