Bcdedit Commands May 2026

: 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_YYYYMMDD Restore: : Always backup before changes: bcdedit /set default

bcdedit /enum all # show hidden/inactive entries bcdedit /enum firmware # UEFI firmware boot entries (UEFI only) bcdedit /v # show full GUIDs (no abbreviation) bcdedit /default current bcdedit /default GUID Sets which OS boots by default after timeout. Boot timeout bcdedit /timeout 10 # wait 10 seconds at boot menu bcdedit /timeout 0 # no menu, boot immediately Copying an entry (for dual-boot or testing) bcdedit /copy current /d "Windows 11 Test Build" Returns a new GUID . You can then modify it. Setting debug options bcdedit /debug on # enable kernel debugging for current boot entry bcdedit /dbgsettings serial debugport:1 baudrate:115200 Safe mode boot bcdedit /set current safeboot minimal bcdedit /set current safeboot network Remove with: You can then modify it