Windows Enterprise Desktop

Jan 7 2009   5:45PM GMT

Create a bootable WinPE UFD

Ed Tittel Ed Tittel Profile: Ed Tittel

Everybody knows what a UFO is, but let me remind readers that Microsoft interprets UFD as “USB Flash Drive.” Thus, what I’m about to describe is best understood as how to create a bootable Flash drive that includes the Windows Vista SP1 Pre-boot Environment (aka Window PE or even WinPE). Interestingly, if you simply troll TechNet or the Microsoft Download Center, you’ll be directed to Windows Automated Installation Kit version 1.0. But if you’re working from post-SP1 Vista (as most readers of this blog probably are), you really want Version 2.1, which is designed to support that environment. You’ll find that on the download page entitled “Automation Installation Kit (AIK) for Windows Vista SP1 and Windows Server 2008” instead.

You’ll download an ISO image of the latest WAIK, which you must then burn to a DVD (it’s 1.2 GB in size and won’t fit on a CD). I used Alex Feinman’s excellent Windows Explorer add-in named ISO Recorder v3 for this (and for all my iso files) but you can use any Vista-compatible DVD burning program you like to do this job. AFter that run the file named startcd.exe on the DVD to launch WAIK. This produces the following screen:

Run the WAIK 2.1 DVD, and here's what you'll see

WAIK 2.1 welcome

Click the option that reads Windows AIK Setup to install WAIK on your current computer (it must be running Vista SP1, in case this isn’t completely obvious). By default this installs WAIK in the C:\Program Files\Windows AIK\ directory. Click your way through the installation screens to make the various WAIK tools available on your PC (on my desktop, this took about three minutes, YMMV).

Next, click Start, All Programs, Windows AIK, then finally Windows PE Tools Command Prompt. Inside the command window, type

Copype.cmd x86 C:\winpe_x86:

where x86 indicates a 32-bit environment and x64 a 64-bit environment, and C:\winpe_x86 is where the various WinPE binaries and directories will be created. After that you can copy tools and utilities from the WAIK Tools directory for your architecture (x86 for 32-bit PCs, and so forth) into the ISO subdirectory beneath C:\Winpe_x86. I usually grab Imagex.exe and the Package Manager, using these commands:


copy "c:\program files\Windows AIK\Tools\x86\imagex.exe
" c:\winpe_x86\iso\
xcopy
"c:\program files\Windows AIK\Tools\x86\Servicing" c:\winpe_x86\iso\Servicing /s

Of course, you’ll have to change the architecture designation for a 64-bit install to x64, and you’ll need to tell the CLI that the xcopy command points to a directory specification, but otherwise things should work for you, if you simply cut and paste these commands into the command window you’ll have open when you create the C:\WinPE_86 environment on your machine.

Next, you must scrub your UFD clean, mark its single partition as active, and format it for FAT32. The following sequence of commands will do the trick (replace n with the actual disk number for your UFD, use the list disk command inside diskpart to get this information:


diskpart
select disk n
clean
create partition primary size=
select partition 1
active
format fs=fat32
assign
exit

After that you need only copy the ISO subdirectory from your C: drive to the drive letter for your UFD to make your bootable image thereupon. The following xcopy command will work (just be sure to correct the drive letter at the end of that command string):

xcopy c:\winpe_x86\iso\*.* /s /e /f i:\

As you work with this boot image, you’ll probably find other tools you want to add to your toolbox. You must copy them into the ISO subdirectory on your C: drive (along with any other supporting files they might need), then reformat the UFD, and repeat the preceding xcopy command to make them available when you boot from that drive.

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