Windows 10: I cannot boot my c drive after flashing my bios

Hi, I currently have Windows 10 pro on my PC. I installed a new bios today so I could get secure boot in preparation for Windows 11 pro. When I start my PC the system does not recognise the c drive anymore. I cannot get into my PC. I didn't anticipate this happening so I didn't create a recovery disc. Any ideas? Kind Regards Mr Song

:)

 

5870 Not Flashing

I had the exact same error and this is how i fixed it
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If you have been suffering messages such as 'Adapter not Found' , 'ERROR 0FL01' , 'Invalid Adapter or BIOS Selected' when trying to flash or reflash your Video cards Bios and you are lucky enough to own a PC capable of running more than one PCI-E Video card then this could just be the Guide you've been looking for.

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Required Files
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*HP USB Disk Storage Format Tool
http://h20000.www2.hp.com/bizsupport...reg_R1002_USEN
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*USB Boot Files
http://www.4shared.com/file/43544416...FILES.html?s=1
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*ATIFlash
http://www.techpowerup.com/downloads...sh 3.79.html
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*Your Video Cards Bios
http://www.techpowerup.com/vgabios/i...ace=&memSize=0

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Part 1
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Step 1 Create USB Boot Drive with HP USB Disk Storage Format Tool

Step 2 Copy all the USB Boot files to the USB Boot Drive (do not overwrite files when prompted)

Step 3 Copy ATIFlash files USB Boot Drive

Step 4 Copy new BIOS file to USB BOOT Drive (name it something like bios.bin as you will be using this name in a DOS Prompt later on)
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Part 2
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Step 1 Boot into 'Safe Mode' (by pressing f8 before booting into Windows)

Step 2 Uninstall ATI Drivers and Associated Software then Reboot
\
Step 3 Go to Device Manager 'Display Adapters' and Uninstall (including Software when prompted)

Step 4 SHUT DOWN your PC (DO NOT REBOOT, if you should so happen to Reboot repeat Step 3 above)
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Part 3
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Step 1 Remove your Video Card from the top PCI-E slot and place it in a different PCI-E slot (this is the step that sets this Guide apart from all the others)

Step 2 Reboot into your Mobo's Bios

Step 3 Once in your Mobo's Bios change the first Boot Device to USB-HDD (or your Equivalent setting) then Reboot

Step 4 At the C:\ Prompt type, atiflash -ai 0 ,this will provide you with proof that your Video Card does infact exist

Step 5 At the C:\ Prompt type, atiflash -unlockrom 0 , i suggest you do this because some Bios files are infact locked and can't be flashed until unlocked

Step 6 At the C:\ Prompt type, atiflash -f -p 0 bios.rom , this is when your Bios is actually flashed

Step 7 Once your Bios has been flashed simply 'Ctrl+Alt+Delete' to restart your PC

Step 8 Go straight back into your Mobo's Bios and change your first Boot Device back to what it was (probably HDD) then Reboot for the final time and your finished
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HD 5870 Bios flash failed

mp3 player is in FAT / FAT32 format ?

Set Boot up first to the drive with hiren bootcd 10.4
Done...

the options will pop out after loading the disc choose

boot cd

then the list (step by step)

Next...
Dos....
USB Drivers....
Load USB Drivers with no386.....

Ask you load cd drivers. NO
Ask you load SCSI drivers. NO
Ask you anything NO.
USB driver list comes out. 8 Don't choose anything else.

type
C:\ (that should be your mp3 player if you did it right)

atiflash -i
to list the adapters

atiflash -p -f 0 ???.bin

done.........

 

install.wim is 7GB, how to make a bootable USB flash drive

This is a method to make a ntfs flash drive.

The trial and error step will be booting using Legacy BIOS...

Code:

This is the link:
Guide: How to Format USB Flash Drive Using Cmd - EaseUS

The link did not use active so that is why it is a trial and error step.