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Significance of special Registry Entries related to booting WTG USB & VHD?

wtg windows-to-go usb vhd portable windows registry keys

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#1 crashnburn

crashnburn

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Posted 17 October 2015 - 04:59 PM

Significance of special Registry Entries related to booting WTG USB & VHD?

 

What are the various valid entries for these keys and what do they signify, especially when booting off

 

- Internal disk,

- External/ USB Disk and

- VHD booting of Internal & External..

 

as

-Normal Windows installs or

- WTG Installs. 

 

What values and how should one change them or modify them manually?

 

1)

 

HKEY_LOCAL_MACHINE\SYSTEM\HardwareConfig\BootDriverFlags

 

[HKEY_LOCAL_MACHINE\SYSTEM\HardwareConfig]
"BootDriverFlags"=dword:00000014
 
reg.exe add 
HKLM\System\CurrentControlSet\Control /f /v BootDriverFlags /t REG_DWORD /d 0x6
 

 

2) 

 

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\PortableOperatingSystem

 

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control]
"PortableOperatingSystem"=dword:00000001
 
reg.exe add 
HKLM\System\CurrentControlSet\Control\PnP /f /v PollBootPartitionTimeout /t REG_DWORD /d 15000

 

 

 



#2 crashnburn

crashnburn

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Posted 24 October 2015 - 12:35 AM

@cdob - How does Windows VHD behavior change if/ when its marked as or not marked as Portable OS

 

 

Its possible for me to create native Boot VHDs using.. 
 
..DISM - Here I have the choice to manually change PortableOS Flag - On or Off.. how will that impact the VHD OS.. for..
 
..when I wish to move the VHD to new machine or keep it on same machine..
..Enable/ Disable to flag based on Staying or Moving needs? 
 
and other tools also..
WinToUSB
WinNTBoot
 
etc. 

Edited by crashnburn, 24 October 2015 - 12:54 AM.


#3 crashnburn

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Posted 24 October 2015 - 12:58 AM

Its kind of mandatory "once Sysprep" a machine before making WIM or Migrating it to VHD or new machine.  

 

But once an OS its tagged Portable it could be moved around without Sysprep - We are assuming that the OS does so with Awareness..

 

Can we change its awareness Radar by changing some of these Registry Flags? i.e. PortableOS or not..

 

Maybe it runs a 'Generalize' everytime it boots? - Something non Portable might not do? 

Maybe it stores 'Hardware profiles & drivers' for each machine it boots on 







Also tagged with one or more of these keywords: wtg, windows-to-go, usb, vhd, portable, windows, registry, keys

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