Thx for the reply... I have found a solution from a different site which worked for me.. copype.cmd x86 c:\winpe_x86 copy c:\winpe_x86\winpe.wim c:\winpe_x86\ISO\sources\boot.wim Dism /Mount-Wim /WimFile:C:\winpe_x86\ISO\sources\boot.wim /index:1 /MountDir:C:\winpe_x86\mount Dism /image:C:\winpe_x86\mount /Add-Package /PackagePath:"C:\Program Files\Windows AIK\Tools\PETools\x86\WinPE_FPs\winpe-wmi.cab" Dism /image:C:\winpe_x86\mount /Add-Package /PackagePath:"C:\Program Files\Windows AIK\Tools\PETools\x86\WinPE_FPs\winpe-hta.cab" Dism /image:C:\winpe_x86\mount /Add-Package /PackagePath:"C:\Program Files\Windows AIK\Tools\PETools\x86\WinPE_FPs\winpe-scripting.cab" copy "C:\Program Files\Windows AIK\Tools\x86\imagex.exe" C:\winpe_x86\mount\Windows\System32\imagex.exe Dism /unmount-Wim /MountDir:C:\winpe_x86\mount /Commit To use USB drive as your bootable media, go through the below site.. http://technet.microsoft.com/en-us/library/dd744530(WS.10).aspx -r