- #Bootrec /rebuildbcd the requested system device cannot be found how to
- #Bootrec /rebuildbcd the requested system device cannot be found windows 10
The /f ALLparameter updates the BIOS settings including UEFI firmware/NVRAM, /l en-gbis to localise for UK/GB locale. 15250 (0x3B92) The requested system device cannot be identified due to multiple indistinguishable devices potentially matching the identification criteria. Use bcdboot.exeto recreate BCD store: bcdboot c:\Windows /l en-gb /s b: /f ALL The requested system device cannot be found. Then assign a drive letter to the EFI partition: DISKPART> sel vol 3ĭiskPart successfully assigned the drive letter or mount point.Įxit DiskPart tool by entering exitand at the command prompt run the following: cd /d b:\EFI\Microsoft\Boot\ĭelete or rename the BCD file: ren BCD BCD.bak Volume 3 FAT32 Partition 260 MB Healthy System
If the system’s BIOS supports a given USB slot but the repair environment does not, you may get this error due to this. Your system’s BIOS may support only one specific USB slot for Windows Recovery. Volume 2 WINRE NTFS Partition 400 MB Healthy Hidden Here are the reasons why the requested system device cannot be found error occurs. Volume 1 C NTFS Partition 195 GB Healthy Boot I have a Samsung 960 M.2 SSD in an Asus Strix X370-F and 2 sata HDDs. All guides I find for next steps suggest to create an EFI partition but I cant do that on an MBR drive. I tried the suggestion to export and delete my bcd first but that failed too, I dont even have a boot folder.
#Bootrec /rebuildbcd the requested system device cannot be found how to
During the cleanup after building my PC I managed to break my Windows installation and I cant figure out how to fix it without starting over. I tried bootrec /rebuildbcd, it finds the Windows install but then says requested system device cannot be found.
#Bootrec /rebuildbcd the requested system device cannot be found windows 10
Volume # Ltr Label Fs Type Size Status Info Windows 10 MBR boot - bootrec /rebuildbcd says requested system device cannot be found. Go into the Advanced options and run the Command Prompt.Įnter diskpartto use the DiskPart tool to ensure you have all the right partitions and to identify your EFI partition – the key thing here is that your EFI partition is formatted as FAT32: DISKPART> sel disk 0 In that scenario (boot mode legacy and boot from Windows 8 installation USB drive), execution of bootrec /rebuildbcd fails with The requested system device. using BCDEDIT I got it to find and launch the Windows partition but it refused to cold boot or would not “keep” the settings after a 2nd reboot or power off. After cloning a SSD for a customer it wouldn’t boot after running the normalīut the Bootrec /rebuildbcd wouldn’t work with a error “The requested system device cannot be found”Īfter spending time looking in to this issue i found a forum post that fixed it right up.įirstly, boot from a UEFI Windows 8/10 recovery disk (CD/DVD/USB) – I found that the automated recovery process didn’t find the correct Windows partition, nor when I managed to add it to BCD settings would it make it reliably bootable e.g.