Download Toshiba Tecra A50 (PT634x) ACPI Flash BIOS Update 1.70
To start downloading Toshiba Tecra A50 (PT634x) ACPI Flash BIOS Update 1.70, please choose one of the links from the list below.
For CD-ROM BIOS updates in Windows 8 or 8.1 models: (1) Shut down the system while pressing the SHIFT key to completely power off. (2) Power on while pressing F2 to enter the BIOS Setup Menu. (3) Go to the Security tab and set the "Secure Boot" setting to "Disabled". (4) Go to the Advanced tab, enter "System Configuration" and set the Boot Mode to "CSM Boot." (5) Press F10 to save and exit. (6) Boot from the CD-ROM. (7) After the BIOS update has completed, restore the Boot Mode setting to "UEFI Boot" and the Secure Boot setting to Enabled.
For CD-ROM BIOS updates in Windows 7 models: Boot from the CD-ROM.
For all updates: The BIOS update will force the computer to shut down or restart. Please make sure to save all work in progress before starting BIOS updates.
Power on the computer if it is off.
While the "TOSHIBA" logo is displayed, press the F2 function key to start BIOS Setup.
Check the version of BIOS and press the F9 function key then Enter to load setup defaults.
Press the F10 function key then Enter to save settings and exit. The computer will automatically reboot.
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