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Windows EFI fails to boot

Solution

Error

bootrec /rebuildbcd

Total identified windows installations.
[1] C:/Windows
Add installation to boot list? Yes(Y)/No(N)/All(A):
A

The system cannot find the path specified.

Fix

Run diskpart.  Identify the boot partition.  Assign drive letter.  Boot partition may be left hidden.

 

DISKPART> list disk

  Disk ###  Status         Size     Free     Dyn  Gpt
  --------  -------------  -------  -------  ---  ---
  Disk 0    Online          447 GB      0 B        *

DISKPART> select disk 0

Disk 0 is now the selected disk.

DISKPART> list part

  Partition ###  Type              Size     Offset
  -------------  ----------------  -------  -------
  Partition 1    Recovery           529 MB  1024 KB
  Partition 2    System              99 MB   530 MB
  Partition 3    Reserved            16 MB   629 MB
  Partition 4    Primary            446 GB   645 MB

DISKPART> select part 2

Partition 2 is now the selected partition.

DISKPART> list vol

  Volume ###  Ltr  Label        Fs     Type        Size     Status     Info
  ----------  ---  -----------  -----  ----------  -------  ---------  --------
  Volume 0     C                NTFS   Partition    446 GB  Healthy    Boot
  Volume 1                      NTFS   Partition    529 MB  Healthy    Hidden
* Volume 2                      FAT32  Partition     99 MB  Healthy    System

DISKPART>

The EFI boot partition (vol 2 above) will be ~100MB and formatted as FAT32

assign letter=E

exit

Reinstall BCD

bcdboot C:\Windows -s E:

Use Diskpart to remove the drive letter and reboot.

 

 
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Article details
Article ID: 145
Category: Windows
Date added: 11-03-2021 14:32:47
Views: 45
Rating (Votes): Article not rated yet (0)

 
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