![]() ![]() In my case, the “The requested system device cannot be found” message was due to the EFI partition being converted from FAT32 to NTFS due to the client’s failed attempt to install Windows XP on a spare drive. When you said “the key thing here is that your EFI partition is formatted as FAT32”, you were absolutely right and that told me what I needed to know. ![]() This article gave me the information I needed to salvage a client’s PC. ![]() The localisation defaults to US English, or use en-US. The /f ALL parameter updates the BIOS settings including UEFI firmware/NVRAM, /l en-gb is to localise for UK/GB locale. Use bcdboot.exe to recreate BCD store: bcdboot c:\Windows /l en-gb /s b: /f ALL 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 exit and 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 Volume 2 WINRE NTFS Partition 400 MB Healthy Hidden Volume 1 C NTFS Partition 195 GB Healthy Boot Volume # Ltr Label Fs Type Size Status Info Go into the Advanced options and run the Command Prompt.Įnter diskpart to 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 ![]() 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. But 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. ![]()
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