Advanced - Build a multi-bootable drive

Build a multi-bootable flash drive
Requirements: Knowledge of ADK (Dism, WinPE, Dart, WinRE, etc...)

About:
You will know how to build a flash drive that displays a bootable menu with tools like: (WinPE, Dart, WinRe, Windows Setup) for UEFI and legacy bios.
You will learn the basic usage of: bcdedit (by example)

What can i create with this?
* A rescue or emergency tool. (by integrating WinPE, Dart, WinRE) <-- In this example
* A Muti Windows setup flash drive.
* A combination of Windows setup with multiple languages.

You will need:
* A WinPE already built in a flash drive.
* A Winre.wim extracted from an install.wim
Optional: Dart (boot.wim) and Windows (install.wim)

Instructions UEFI:

Code:

* Assume F: as your WinPE flash drive.
* Copy other images to the F: sources folder (winre.wim, dart.wim, etc...)

1) Shows the BCD info for the first entry on the BCD File (Take note of the GUID)... the GUID will look like: {7619dcc8-fafe-11d9-b411-000476eba25f}
bcdedit /store F:\EFI\Microsoft\Boot\BCD /enum | find "osdevice"

* Or use this command to view all the entries with their GUIDs: 
bcdedit /store F:\EFI\Microsoft\Boot\BCD /enum all


2) Sets the first entry to the image.wim you want to boot. (In this example the WinPE) {7619dcc8-fafe-11d9-b411-000476eba25f}
bcdedit /store F:\EFI\Microsoft\Boot\BCD /set {default} device ramdisk=[boot]\sources\boot.wim,{7619dcc8-fafe-11d9-b411-000476eba25f}

bcdedit /store F:\EFI\Microsoft\Boot\BCD /set {Default} path \windows\system32\winload.efi

bcdedit /store F:\EFI\Microsoft\Boot\BCD /set {default} osdevice ramdisk=[boot]\sources\boot.wim,{7619dcc8-fafe-11d9-b411-000476eba25f}

bcdedit /store F:\EFI\Microsoft\Boot\BCD /set {Default} systemroot \windows

bcdedit /store F:\EFI\Microsoft\Boot\BCD /set {default} description "WinPE 5.1 x64"

3) Copy the entry created to make a rule for other one: (Give the copy a name) (Example: WinRE) {7a641064-bc25-11e3-8261-00224d818f7a}
bcdedit /store F:\EFI\Microsoft\Boot\BCD /copy {default} /d "Windows 8.1 RE x64"

4) Modify the rule to point to the other image.wim ("WinRE_x64.wim")
bcdedit /store F:\EFI\Microsoft\Boot\BCD /set {7a641064-bc25-11e3-8261-00224d818f7a} device ramdisk=[boot]\sources\WinRE_x64.wim,{7619dcc8-fafe-11d9-b411-000476eba25f}

bcdedit /store F:\EFI\Microsoft\Boot\BCD /set {7a641064-bc25-11e3-8261-00224d818f7a} osdevice ramdisk=[boot]\sources\WinRE_x64.wim,{7619dcc8-fafe-11d9-b411-000476eba25f}

* If you want to integrate other boot.wim or other stuff.wim ex: DART...  Then repeat steps 3 and 4 (Change the GUID and the .wim filename accordingly.)

5) Creates the bootable menu
bcdedit.exe /store F:\EFI\Microsoft\Boot\BCD /deletevalue {default} bootmenupolicy 

You should also do the legacy part. Below.

 

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Use legacy boot loader if you frequently switch OS.

To disable new Metro boot loader and bring back Windows Vista and 7 style boot loader in Windows 8.

Code:

* Local
bcdedit /set {default} bootmenupolicy legacy

* External (Flash Drive)
bcdedit /store F:\Boot\BCD /set {default} bootmenupolicy legacy

To re-enable Windows 8 Metro boot loader in future, simply execute following command in Command Prompt:

Code:

* Local
bcdedit /set {default} bootmenupolicy standard

* External (Flash Drive)
bcdedit /store F:\Boot\BCD /set {default} bootmenupolicy standard

Customizing Timeout value:

Code:

bcdedit /store F:\Boot\BCD /set {bootmgr} timeout 20