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other:bios [2015/01/09 09:58]
jypeter Added the ESC key for HP machines
other:bios [2022/06/30 07:27] (current)
jypeter [Entering the BIOS]
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-====== BIOS notes ======+====== BIOS, diagnostics and other start-up ​notes ======
  
-===== Entering the BIOS ===== 
  
-Power off the machine, then power it **and** press the appropriate key at the same time+===== Crashed computer =====
  
- ​Dell ​ |  F2  | +Check the [[other:​win10crash|Recovering from a Major Hardware or Windows 10 Crash]] section 
-|  HP  |  ESC  |+===== BIOS =====
  
-===== Choosing ​the boot media or the diagnostics =====+==== Determining ​the BIOS version ​====
  
- ​Dell ​ |  F12  | +The BIOS version is usually displayed quickly when a computer is booting, and when [[other:​bios#​entering_the_bios|you are in the BIOS options screen]]
-|  HP  |  ESC  |+
  
-===== Enabling boot on a USB drive =====+You can also get the BIOS version when your operating system is running! 
 + 
 +=== From Windows === 
 + 
 +Use the [[https://​support.microsoft.com/​en-us/​topic/​description-of-microsoft-system-information-msinfo32-exe-tool-10d335d8-5834-90b4-8452-42c58e61f9fc|msinfo32]] command (i.e. type ''​msinfo32''​ in the search field at the bottom left of the screen, and then launch the System Information app) and check the //BIOS version// line in the //system summary// screen. You will also get lots of other useful information about your computer (e.g. computer name) 
 + 
 +=== From Linux === 
 + 
 +Use the [[http://​manpages.ubuntu.com/​manpages/​xenial/​man8/​dmidecode.8.html|dmidecode]] command: ''​dmidecode -s bios-version''​ 
 + 
 +<​code>​$ sudo dmidecode -s bios-version 
 +[sudo] Password for your_login:​ 
 +1.10.0</​code>​ 
 + 
 +==== Entering the BIOS ==== 
 + 
 +Power off the machine, then power it on again **and** press repeatedly the appropriate key several times while the computer is starting, until you see the BIOS options screen. This should take place **before** you have to type the Windows //​bitlocker//​ password, or the Linux (de)crypting password 
 + 
 +|  Dell  |  ''​F2 '' ​ | 
 +|  HP  |  ''​ESC'' ​ or ''​F10'' ​ | 
 + 
 +==== Enabling boot on a USB drive in the BIOS ==== 
 + 
 +=== Dell BIOS === 
 + 
 +''​Settings''​ => ''​General''​ => ''​Boot Sequence'':​ //USB Storage Device// must be selected, and in the first place of the Boot Order 
 + 
 +==== Updating the BIOS ==== 
 + 
 +<WRAP center round important 60%> 
 +Updating the BIOS is safe, but it may be a good idea to get help from somebody who has already done it. Your computer may restart several times, blink, etc, before the update is complete. 
 + 
 +Be sure to be connected to a power supply during the update 
 + 
 +If your Windows computer is protected by **bitlocker** at boot time, you have to [[https://​www.dell.com/​support/​kbdoc/​en-us/​000125409/​how-to-enable-or-disable-bitlocker-with-tpm-in-windows#​TOC05|suspend bitlocker]] (//​suspend//,​ and **not** //​disable//​),​ **before rebooting**. [[https://​docs.microsoft.com/​en-us/​troubleshoot/​windows-client/​windows-security/​suspend-bitlocker-protection-non-microsoft-updates|more info]] 
 + 
 +The BIOS update will take place during the boot time, then Windows will start and bitlocker will automatically start again </​WRAP>​ 
 + 
 +  * **Dell**:  
 +    * Healthy Windows computer: 
 +      * Start the [[https://​www.dell.com/​support/​kbdoc/​en-us/​000177325/​dell-command-update|Dell Command Update]] program ,look for available updates (BIOS updates and others), and download them\\ ''​Start''​ => ''​Dell Command Update''​ 
 +      * check the [[https://​www.dell.com/​support/​home/​en-us|Dell Support page]], enter your Dell computer Serial Number (if it is not automatically detected), and check the BIOS related information 
 +    * Crashed Windows, or healthy (or crashed) Linux computer: use a USB stick to update the BIOS, following the steps in the [[https://​www.dell.com/​support/​contents/​fr-fr/​videos/​videoplayer/​how-to-recover-from-booting-issues-using-the-bios-recovery-tool/​6079779755001|How to recover from booting issues using the BIOS Recovery Tool]] video 
 +  * **HP**: \\ <WRAP center round important 60%> 
 +If the BIOS update does not seem to work (no update takes place), check this [[https://​wiki.lsce.ipsl.fr/​pmip3/​doku.php/​other:​win7towin10#​bios_update|HP BIOS update]] section 
 +</​WRAP>​ 
 +    * [[https://​support.hp.com/​us-en/​document/​c00007682|HP Consumer Desktop PCs - Updating the BIOS (Basic Input Output System)]] 
 +    * [[https://​support.hp.com/​us-en/​document/​c00042629|HP Consumer Notebook PCs - Updating the BIOS (Basic Input Output System)]] 
 +==== Notes ==== 
 + 
 +There are lots of HP BIOS details in [[http://​h10032.www1.hp.com/​ctg/​Manual/​c06399361|HP PC Commercial BIOS (UEFI) Setup - Administration Guide]] (pdf document) 
 + 
 +===== Other start-up related notes ===== 
 + 
 +==== Choosing the boot media or the diagnostics ==== 
 + 
 +|  Dell  |  ''​F12''​ (enter the //One-time Boot Menu//​) ​ | 
 +|  HP  |  ''​ESC''​ and then ''​F2'' ​ | 
 + 
 +==== Booting in safe mode ==== 
 + 
 +<WRAP center round tip 60%> 
 +Safe mode <=> //Mode sans échec// 
 +</​WRAP>​ 
 + 
 +=== Windows 10 === 
 + 
 +Read the [[other:​win10crash#​the_windows_recovery_environment_and_the_safe_mode|Windows Recovery Environment (Windows RE) and the Safe Mode]] notes 
 + 
 +=== Windows 7 === 
 + 
 + 
 +Power off the machine, then power it **and** press the appropriate key at the same time
  
-==== Dell ====+|  ​Dell  ​| ​ ''​F8 '' ​ | 
 +|  HP  |    |
  
-Settings => General => Boot Sequence//USB Storage Device// must be selected, and in the first place of the Boot Order+See also [[/other:win7misc#​performing_a_clean_boot_in_windows|Performing a safe clean boot]]
  
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other/bios.1420797531.txt.gz · Last modified: 2015/01/09 09:58 by jypeter