NEC VERSAPRO VG, User Manual, Page: 23 / 32

2 3
The following explains how to switch the OS (from Windows 7 to Windows 8.1, or from
Windows 8.1 to Windows 7).
Return the current settings of BIOS Setup utility to the factory defaults, initialize the
security chip, and change the boot settings as follows.
IMPORTANT: Change the boot settings first, then set the Security settings.
*1: If you use an optical drive connected via USB connection, set it as a USB CD/
DVD device.
Refer to "Recovery" and "Recovery Basics" paragraph (p.18).
Then, proceed to "Computer recovery (Windows 8.1)" (p.19) or "Computer recovery
(Windows 7)" (p.21).
Now, you have set up the Windows system version.
Appendix
The "Fast Startup" function allows quick computer startup from the power-off state. The
"Fast Startup" function is enabled by factory default.
Before installing or removing a peripheral, disable the "Fast Startup" function as
follows and shut down the computer.
If the "Fast Startup" function is still enabled and if you install or remove a peripheral
device, the device may not be detected by the system.
1
Click [Desktop] on the start screen.
2
Display the charm bar on the desktop, and click [Settings].
3
Click [Control Panel].
4
Click [System and Security] and then select [Change what the power
buttons do] from the [Power Options].
5
Select [Change settings that are currently unavailable].
6
Uncheck the [Turn on fast startup (recommended)] box of [Shutdown
settings].
7
Click [Save changes].
Switching the Windows system to another version
Outline
If you are using the VG22T/GG-L Windows
®
7 Professional 64-bit with Service Pack 1
(SP1) (downgraded from Windows 8.1 Pro Update license) model, you can use the
Windows 8.1 system without having to purchase another license.
Change the current settings of BIOS Setup utility
Windows 7

Windows 8.1
Windows 8.1

Windows 7
Boot
Boot Mode UEFI Legacy
1st Boot
_
CD/DVD
*1
Security
Secure Boot Enabled
_
Set up the Windows system again
• When you set up the Windows system again, use the included "Recovery Disc".
• After you have set up the Windows system again, use the "Application Disc" that is
compatible with the version of Windows you are currently using.
Disabling the "Fast Startup" function (Windows 8 .1)