Bcdedit Commands [Direct Link]

: Always backup before changes:

bcdedit /set default bootmenupolicy legacy bcdedit /set default recoveryenabled No bcdedit /set hypervisorlaunchtype auto Disable: bcdedit /set hypervisorlaunchtype off Legacy boot menu (F8) instead of modern recovery UI bcdedit /set current bootmenupolicy legacy Switch back: bcdedit /set current bootmenupolicy standard 6. Gotchas & Warnings | Mistake | Consequence | |--------|-------------| | bcdedit /set current path wrong.efi | OS won't boot | | Deleting bootmgr entry | Boot manager disappears | | Modifying memdiag incorrectly | Memory diagnostic tool breaks | | Setting timeout 0 without default | Stuck at black screen | | Using BIOS commands on UEFI | No effect or error | | Corrupt BCD store → bootrec /fixboot | Often insufficient | bcdedit commands

bcdedit /export C:\bcd_backup bcdedit /createstore C:\newbcd bcdedit /import C:\newbcd /clean This wipes all entries. bcdedit /set GUID device partition=D: bcdedit /set GUID osdevice partition=D: Change boot logo / UI behavior bcdedit /set globalsettings bootux disabled Ignore boot failures (dangerous) bcdedit /set badmemory badmemorylist 0x12345 bcdedit /set badmemory noerrordisplay yes 5. Common Use Cases & Scenarios Add Linux to Windows Boot Manager (UEFI) bcdedit /create /d "Ubuntu" /application osloader # returns GUID bcdedit /set GUID device partition=H: bcdedit /set GUID path \EFI\ubuntu\grubx64.efi bcdedit /displayorder GUID /addlast Recover from black screen (no boot) Boot from Windows USB → Repair → Command Prompt: : Always backup before changes: bcdedit /set default

bcdedit /enum all /v PowerShell lacks native BCD cmdlets, but you can call bcdedit directly: Common Use Cases & Scenarios Add Linux to