Page 1 of 2 12 LastLast
  1.    06 Jan 2016 #1
    Join Date : Aug 2015
    Posts : 117
    Windows 10 Home Premium

    After Upgrade Can't Access BIOS to Change Boot Order for W7 Reinstall


    Have a Lenovo H420 desktop that was upgraded about 2 months ago. We backed up everything and want to reinstall Windows 7.

    But I can find no way to get into the Setup screen. I've gone to Settings, Update & Security, Advanced Startup and Restart Now. But I have no option to Use a Device. If I choose Troubleshoot then Advanced Options, the subsequent screen has no option for UEFI Firmware Settings.

    I've disabled Fast Boot through Power Options in the Control Panel, then tried F2 and the Delete key when starting. Nothing...

    The fact that I can't do something that was so easy in Windows 7 is enough reason in itself to remove 10. Throw in the fact that the scanner part of my printer no longer works is just icing on the cake. I have the Windows 7 disk. I just can't figure out how to use it.
      My ComputerSystem Spec
  2.    06 Jan 2016 #2
    Join Date : Apr 2014
    Space coast of Florida
    Posts : 5,379
    Windows 10 Pro X64 16299.19

    According to the mamual:

    2.3 System Setup

    System Setup configures the network configuration for the Lenovo Rescue
    System to ensure your Rescue System can connect to internet. In addition, System
    Setup sets and manages all passwords for the Lenovo Rescue system.

    2.3.1 Launch
    Repeatedly press and release the F2 key when turning on the computer until the
    Lenovo Rescue System open, then select System Setup.

      My ComputersSystem Spec
  3.    06 Jan 2016 #3
    Join Date : Aug 2015
    Posts : 117
    Windows 10 Home Premium
    Thread Starter

    As I already said I've disabled Fast Boot through Power Options in the Control Panel, then tried F2 and the Delete key when starting. Nothing...
    I sort of figured that when I mentioned the F2 option, it was understood that I was 'repeatedly pressing and releasing' the F2 key.
      My ComputerSystem Spec
  4.    06 Jan 2016 #4
    Join Date : Jul 2015
    Posts : 9,552
    Windows 10 Pro

    Is the F2 key assigned another function? For example mine is assigned as decrease screen brightness. When restarting the computer you might have to hold down the FN key while repeatedly pressing F2 to make it the actual F2 keystroke vice the function assigned to it.

    Also to ensure you are going all the way back to a pure bios bootup, hold down the shift key when clicking Shutdown or Restart from the power icon in Windows 10 (although normal "restart" is supposed to go back all the way to a pure bios bootup).
      My ComputerSystem Spec
  5.    06 Jan 2016 #5
    Join Date : Aug 2015
    Posts : 117
    Windows 10 Home Premium
    Thread Starter

    Quote Originally Posted by NavyLCDR View Post
    Is the F2 key assigned another function? For example mine is assigned as decrease screen brightness. When restarting the computer you might have to hold down the FN key while repeatedly pressing F2 to make it the actual F2 keystroke vice the function assigned to it.

    Also to ensure you are going all the way back to a pure bios bootup, hold down the shift key when clicking Shutdown or Restart from the power icon in Windows 10 (although normal "restart" is supposed to go back all the way to a pure bios bootup).
    I think that the fn key is a feature I've only ever seen on laptops. My unit is a desktop, and at any rate the F2 on my keyboard is only an F2.

    Funny that your second paragraph only displayed when I hit 'Reply with quote'. But I had already tried the <shift> + Shutdown without success.
      My ComputerSystem Spec
  6.    06 Jan 2016 #6
    Join Date : Jul 2015
    Posts : 9,552
    Windows 10 Pro

    Is your keyboard a USB keyboard, or wireless with a USB receiver? If so, is it plugged into a USB 3.0 port? Some motherboards won't support USB 3.0 until a driver is loaded, so try moving it to a USB 2.0 port.
      My ComputerSystem Spec
  7.    06 Jan 2016 #7
    Join Date : Aug 2015
    Posts : 117
    Windows 10 Home Premium
    Thread Starter

    Quote Originally Posted by NavyLCDR View Post
    Is your keyboard a USB keyboard, or wireless with a USB receiver? If so, is it plugged into a USB 3.0 port? Some motherboards won't support USB 3.0 until a driver is loaded, so try moving it to a USB 2.0 port.
    USB keyboard.
      My ComputerSystem Spec
  8.    06 Jan 2016 #8
    Join Date : Jul 2015
    Posts : 9,552
    Windows 10 Pro

    Also have you tried resetting the CMOS by using the reset jumper on the motherboard or disconnecting all power and removing the CMOS battery?
      My ComputerSystem Spec
  9.    06 Jan 2016 #9
    Join Date : Aug 2015
    Posts : 117
    Windows 10 Home Premium
    Thread Starter

    Quote Originally Posted by NavyLCDR View Post
    Also have you tried resetting the CMOS by using the reset jumper on the motherboard or disconnecting all power and removing the CMOS battery?
    No. What do you think that will do? Enable F12? Enable F2? Bring back the Use a Device option? I'm certainly willing to do that, but to what end? I need guidance on what to do after resetting the CMOS.
      My ComputerSystem Spec
  10.    06 Jan 2016 #10
    Join Date : Jul 2015
    Posts : 9,552
    Windows 10 Pro

    There may be some setting in bios that is either keeping it from detecting the keystrokes during startup or keeping Windows 10 from seeing the UEFI function of the bios to restart into.

    But - before you do that - from an elevated command prompt ("run as administrator" command prompt), type reagentc /info

    What result do you get?

    You should see something like this:
    C:\Windows\system32>reagentc /info
    Windows Recovery Environment (Windows RE) and system reset configuration
    Information:

    Windows RE status: Enabled
    Windows RE location: \\?\GLOBALROOT\device\harddisk0\partition1\Recovery\WindowsRE
    Boot Configuration Data (BCD) identifier: 1151b248-a79b-11e5-bf5e-9f42bd5449b1
    Recovery image location: \\?\GLOBALROOT\device\harddisk0\partition1\sources
    Recovery image index: 2
    Custom image location:
    Custom image index: 0

    REAGENTC.EXE: Operation Successful.
    If you see Windows RE status as Disabled and/or the Windows RE location is blank, that is why you don't have a fully functioning advanced startup/troubleshooting menu.
      My ComputerSystem Spec

 
Page 1 of 2 12 LastLast


Similar Threads
Thread Forum
Ubuntu Boot option still available in UEFI BIOS after Dual Boot
Recently I played around with dual booting Linux Mint on my system. I decided that I would delete it for the present as I have other things to focus on. However, after deleting partitions and fixing my MBR to only boot windows my UEFI BIOS still...
General Support
can"t change Access 2010 database after W10 upgrade
I recently upgraded to W10 and now when I try to change a form in Access 2010 DB It errors and has to close. The error is : Faulting module path: C:\PROGRA~2\COMMON~1\MICROS~1\VBA\VBA7\VBE7.DLL. If I undo the change then all is fine. There was a...
Software and Apps
Computer wont boot (even into UEFI/BIOS) after Windows 10 upgrade
Hi all. I have had nothing but issues, since upgrading to Windows 10 from Windows 8 (64). The installation within of itself was horrible. I got the continual flash on the screen, until I was able to get it into safe mode and recovered it. Then...
General Support
Solved Can't access BIOS, Can't boot from USB/DVD
Hi My problem is that I can't access UEFI Firmware settings or Boot from USB/DVD in the Advanced startup. They are missing. What can I do? I want to go back to windows 8.1 (Don't have windows.old folder), but it gives me an error when I install it...
General Support
Our Sites
Site Links
About Us
Windows 10 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 10" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd
All times are GMT -5. The time now is 02:27.
Find Us
Twitter Facebook Google+ Ten Forums iOS App Ten Forums Android App



Windows 10 Forums