Windows 8 - Reset & Refresh

Reset your PC – Remove all personal data, apps, and settings from the PC, and reinstall Windows.
Refresh your PC – Keep all personal data, Metro style apps, and important settings from the PC, and reinstall Windows.

Reset and refresh feature that make you able to reset and restore Windows8 settings, applications and do a system clean up and reinstall the OS, something like on a mobile OS.

Reset your PC to start over

In some cases, you might just want to remove everything and start from scratch manually. But in other cases, you're removing your data from a PC because you're about to recycle or decommission it. For both of these situations, you can easily reset your Windows 8 PC and put the software back into the same condition as it was when you started it for the very first time (such as when you purchased the PC).

Resetting your Windows 8 PC goes like this:

1. The PC boots into the Windows Recovery Environment (Windows RE).
2. Windows RE erases and formats the hard drive partitions on which Windows and personal data reside.
3. Windows RE installs a fresh copy of Windows.
4. The PC restarts into the newly installed copy of Windows.