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I/O Interface SecurityIn the Security menu, you can access I/O Interface Security to lock or unlock some interface functions of your Notebook PC.
I/O Interface Security
LAN Network Interface             [UnLock]Wireless Network Interface        [UnLock]HD AUDIO Interface                [UnLock]USB Interface Security
If Locked, LAN controller will be disabled.
Aptio Setup Utility - Copyright (C) 2012 American Megatrends, Inc.Security
→←    : Select Screen ↑↓   : Select Item Enter: Select +/—  : Change Opt. F1   : General Help F9   : Optimized Defaults F10  : Save & Exit     ESC  : Exit 
Version 2.15.1226. Copyright (C) 2012 American Megatrends, Inc.
LAN Network InterfaceLockUnLock
To lock an interface:
1. On the Security screen, select I/O Interface Security.
2. Select an interface you would like to lock then press 
.
3. Select Lock.
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USB Interface SecurityThrough the I/O Interface Security menu, you can also access USB Interface Security to lock or unlock ports and devices.
Version 2.15.1226. Copyright (C) 2012 American Megatrends, Inc.
USB Interface Security
USB Interface                  [UnLock]
External Ports                 [UnLock]CMOS Camera                    [UnLock]Card Reader                    [UnLock] 
If Locked, all USB device will be disabled
Aptio Setup Utility - Copyright (C) 2012 American Megatrends, Inc.Security
→←    : Select Screen ↑↓   : Select Item Enter: Select +/—  : Change Opt. F1   : General Help F9   : Optimized Defaults F10  : Save & Exit     ESC  : Exit 
USB InterfaceLockUnLock
To lock the USB interface:
1. On the Security screen, select I/O Interface Security > USB Interface Security.
2. Select an interface that you would like to lock then select Lock.
NOTE: Setting the USB Interface to Lock also locks and hides the External Ports and other devices included under USB Interface Security.
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Set Master PasswordIn the Security menu, you can use Set Master Password to set up a password-enabled access to your hard disk drive.
Aptio Setup Utility - Copyright (C) 2011 American Megatrends, Inc.
Set HDD Master Password.***Advisable to Power Cycle System after Setting Hard Disk Passwords***
Aptio Setup Utility - Copyright (C) 2012 American Megatrends, Inc.Main   Advanced   Boot  Security   Save & Exit
→←    : Select Screen ↑↓   : Select Item Enter: Select +/—  : Change Opt. F1   : General Help F9   : Optimized Defaults F10  : Save & Exit     ESC  : Exit 
Version 2.15.1226. Copyright (C) 2012 American Megatrends, Inc.
Password DescriptionIf ONLY the Administrator’s password is set,then this only limits access to Setup and is only asked for when entering Setup. If ONLY the user’s password is set, then this is a power on password and must be entered to boot or enter Setup. In Setup, the User will have Administrator rights. 
Administrator Password Status  NOT INSTALLEDUser Password Status           NOT INSTALLEDAdministrator PasswordUser PasswordHDD Password Status :          NOT INSTALLEDSet Master PasswordSet User PasswordI/O Interface Security
To set the HDD password:
1. On the Security screen, select Set Master Password.
2. Type in a password then press .
3. Re-type to confirm the password then press .
4. Select Set User Password then repeat the previous steps to set up the user password.
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Save & Exit
To keep your configuration settings, select Save Changes and Exit before exiting the BIOS.
Aptio Setup Utility - Copyright (C) 2012 American Megatrends, Inc.Main   Advanced   Boot   Security  Save & Exit
→←    : Select Screen ↑↓   : Select Item Enter: Select +/—  : Change Opt. F1   : General Help F9   : Optimized Defaults F10  : Save & Exit     ESC  : Exit 
Version 2.15.1226. Copyright (C) 2012 American Megatrends, Inc.
Save Changes and ExitDiscard Changes and Exit
Save OptionsSave ChangesDiscard Changes
Restore Defaults
Boot OverrideWindows Boot Manager  
Launch EFI Shell from filesystem device
Exit system setup after saving the changes.
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To update the BIOS:
1. Verify the Notebook PC’s exact model then download the latest BIOS file for your model from the ASUS website.
2. Save a copy of the downloaded BIOS file to a flash disk drive.
3. Connect your flash disk drive to your Notebook PC.
4. Restart your Notebook PC then press  during POST.
5. From the BIOS menu, Select Advanced > Start Easy Flash, then 
press .
Aptio Setup Utility - Copyright (C) 2011 American Megatrends, Inc.
Start Easy FlashInternal Pointing Device              [Enabled]Wake on Lid Open                      [Enabled]Power Off Energy Saving               [Enabled]SATA ConfigurationGraphics ConfigurationIntel (R) Anti-Theft Technology CorporationUSB ConfigurationNetwork Stack
Press Enter to run the utility to select and update BIOS.
Aptio Setup Utility - Copyright (C) 2012 American Megatrends, Inc.Main  Advanced   Boot   Security   Save & Exit
→←    : Select Screen ↑↓   : Select Item Enter: Select +/—  : Change Opt. F1   : General Help F9   : Optimized Defaults F10  : Save & Exit     ESC  : Exit 
Version 2.15.1226. Copyright (C) 2012 American Megatrends, Inc.
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FSOFS1FS2FS3FS4
0 EFI 
ASUSTek Easy Flash Utility
[←→]: Switch [↑↓]: Choose [q]: Exit [Enter]: Enter/Execute
Current BIOSPlatform: X555Version: 101Build Date: Apr 26 2015Build Time: 11:51:05
New BIOSPlatform: UnknownVersion: UnknownBuild Date: UnknownBuild Time: Unknown
FLASH TYPE: MXIC 25L Series
6. Locate your downloaded BIOS file in the flash disk drive then 
press . 
7. After the BIOS update process, select Exit > Restore Defaults to restore the system to its default settings.
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Recovering your system
Using recovery options on your Notebook PC allows you to restore the system to its original state or simply refresh its settings to help improve performance.
IMPORTANT! 
•	Back up all your data files before doing any recovery option on your Notebook PC.
•	 Note	down	important	customized	settings	such	as	network	settings,	user names, and passwords to avoid data loss.
•	 Ensure that your Notebook PC is plugged in to a power source before resetting your system.
Windows® 8.1 allows you to do any of the following recovery options:
•	 Refresh	your	PC	without	affecting	your	files	- This option allows you refresh your Notebook PC without affecting personal files (photos, music, videos, documents).
 Using this option, you can restore your Notebook PC to its default settings and delete other installed apps.
•	 Remove	everything	and	reinstall	 Windows	- This option resets your Notebook PC to its factory settings. You must back up your data before doing this option.
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•	 Advanced	startup	- Using this option allows you to perform other advanced recovery options on your Notebook PC such as:
-   Using a USB drive, network connection or Windows recovery DVD to startup your Notebook PC.
- Using Troubleshoot to enable any of these advanced recovery options: System Restore, System Image Recovery, Startup Repair, Command Prompt, UEFI Firmware Settings, Startup Settings.
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Enabling a recovery option
Refer to the following steps if you want to access and use any of the available recovery options for your Notebook PC.
1. Launch the charms bar and select Settings.
2. Select Change PC Settings.
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3. Under the PC Settings options, select Update and recovery.
4. Under the Update and recovery options, select Recovery then select the recovery option you would like to do.
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