16Useful 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 disk space in the partition is notavailable to store data.To check the Recovery Partition, perform the following methods.Long touch at the bottom left corner of the desktop screen.Touch [Disk Management].■ Remove everything and reinstall WindowsPreparation● Remove all peripherals and SD memory card, etc.● Connect the AC adaptor and do not remove it until reinstallation is complete.● Connect the external keyboard.1 Perform “Remove everything and reinstall Windows”.Display “Charm” 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 “Setup Windows” (è page 7).NOTE● The date and time, and the time zone may not be correct. Be sure to set them correctly.3 Perform Windows Update.4 Clear TPM.Perform either of the following procedures.● Long touch at the bottom left corner of the desktop screen.● Flick from the middle of the Start screen to the top.Touch [Run], then input “tpm.msc” and touch [OK].Touch [Clear TPM ...] under “Actions” on the right of the “TPM Management on LocalComputer” screen.Touch [Restart] of the “Manage the TPM security hardware” screen.The computer will restart.When “TPM configuration change was requested to” is displayed, press F12.Touch the Desktop tile, and when “TPM is ready” appears, touch [Close].