15 Useful InformationReinstalling SoftwareReinstalling software will return the computer to the default condition. When you reinstall thesoftware, the flash memory data will be erased.Back up important data to other media or an external hard disk before reinstallation.CAUTION● Do not delete the Recovery Partition on the flash memory. The Recovery Partition is not availableto store data.To check the Recovery Partition, perform the following methods.Perform the following procedure.● Long touch at the bottom left corner of the desktop screen.Touch [Disk Management].NOTE● You can use the following buttons instead of the keyboard (è page 4).: ↓ key: ↑ key: Enter key: F2 key (Default setting)● Connect the AC adaptor and do not remove it until reinstallation is complete.■ Remove everything and reinstall WindowsYou can reinstall the OS that was pre-installed at the time of purchase (Windows 8.1).Preparation● Connect the external keyboard.● Remove all peripherals.1 Perform “Remove everything and reinstall Windows”.Open the charms, and touch - [Change PC settings] - [Update and recovery] -[Recovery].Touch [Get Started] under "Remove everything and reinstall Windows".Touch [Next].Select the option.• [Just remove my files]Perform the reinstallation of Windows in a few moments (Approximately 20 minutes).• [Fully clean the drive]By fully cleaning, the deleted files can not be recovered easily and the security level willbe increased. The processing time will be longer (Approximately 140 minutes).Follow the on-screen instructions.After the reinstallation, the computer will restart.● Do not interrupt installation, for example by turning off the computer or performing otheroperation.Otherwise installation may become unavailable as Windows may not start up or the datamay be corrupted.2 Perform the “First-time Operation” (è page 6).NOTE● The date and time, and the time zone may not be correct. Be sure to set them correctly.3 Perform Windows Update.