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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.
Refer to "Recovery" and "Recovery Basics" paragraph (p.20).
Then, proceed to "Computer recovery (Windows 8.1)" (p.21) or "Computer recovery
(Windows 7)" (p.23).
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 including the PS/2 interface keyboard, 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 MG33M/B-K, MG36L/B-K 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
Exit
OS Optimized Defaults
Enabled
Disabled
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)