Windows X's Live recommends:
Before and after making any changes to your system: Check Windows for registry errors
and make sure to run a free scan to check check for windows errors causing speed loss

Microsoft took the opportunity to announce new functionality to Windows 8 which is already available on smartphones. "Today, most consumer electronic devices can be restored to a factory state, so we also included this option in Windows 8," said Steven Sinofsky, president of the Windows division (for example you can easily restore your iPhone to Original Default Factory Settings).

Over time, an operating system can grow heavy and lose velocity. What then consider taking steps to formatting a clean reinstall of the OS. Windows Manager, Desmond Lee explains on the blog Building Windows 8 two features to find an OS of early youth.

Reset deletes all data, applications and settings of the PC and reinstalls a copy of Windows 8. Two options are proposed Reset. (Quick), which takes place in just over 6 minutes, and Advanced during which process deleted data cannot be recovered. Without the functionality of BitLocker Drive Encryption, the Advanced Reset takes about 24 minutes.

Like the reset, the Refresh uses Windows Recovery Environment directly accessible from the user interface. Refresh with this promise to last a little over 8 minutes, Windows 8 is reinstalled, but this time the personal data of the user are retained, most of the settings and applications Metro style. Third-party applications will be resettled by cons.

Desmond Lee, the reset can start from scratch, while Refresh is aimed more to solve problems. Note that if the PC cannot boot or problems using Windows RE, a tool will create a bootable USB device.