45Useful Information8 Touch [Exit] and double-touch your DVD drive in [BootOverride].The computer will restart.9 Touch [Reinstall Windows] and touch [Next].10 At the confirmation message, touch [YES].11 At the License Agreement screen, touch [Yes, I agree tothe provisions above and wish to continue!] and touch[Next].12 Touch [Next].If the option is displayed, select the setting and touch [Next].z [Reinstall Windows to the System Disk to factory default.]Select this option when you want to install Windows to the factory default.After installation, you can create a new partition. For how to create a newpartition, refer to “To change the partition structure” (Î page 29).z [Reinstall to the OS related partitions.] *2Select this option when the hard disk has already been divided intoseveral partitions and you want to keep the partition structure. For howto create a new partition, refer to “To change the partition structure”(Î page 29).*2 This does not appear if Windows cannot be installed to the recovery partition andthe area usable by Windows.13 At the confirmation message, touch [YES].Installation starts according to the instructions on the screen. (It will takeapproximately 30 - 45 minutes.)z Do not interrupt installation, for example by turning off the computer.Otherwise installation may become unavailable as Windows may notstart up or the data may be corrupted.14 When Ending process screen is displayed, remove theRecovery Disc and DVD Drive and then touch [OK].Follow the on-screen instructions.Some models may take approximately 40 minutes.15 Perform the “First-time Operation” (Î page 27).16 Start the Setup Utility and change the settings as neces-sary.17 Perform Windows Update.18 Clear TPM(Î page 41).