i’ve been asked by a friend to help him personalize the Windows 7/8 computer properties to add few information about the company, helpdesk and a company logo…
what we wanted is basically add the custom information like the OEM normally do…
as they are “migrating*” from SMS 2003 (with Windows XP) to SCCM 2007 SP1** to deploy Windows Windows 8, i decided to test it with powershell, and it worked 
To perform this, you need follow these steps:
1- download the script i created from here
when you extract the file, you can create a bmp file (size 120×120). if you don’t want, you can delete the bmp i created
2- Create a Package and distribute it to a DP or DP Group
3- Add powershell to the boot images (both, x64 and x86)
4- Edit your task sequence
the command line i’m using is: powershell.exe -ExecutionPolicy Bypass .\InjectOEMInformation.ps1 -Manufacturer ‘RFL Systems Ltd’ -model ‘Windows 7 x64 Image v1.2′ -SupportHours ’09:00 to 17:00′ -SupportPhone ‘x1234′ -SupportURL ‘support.rflsystems.co.uk’
I really think i do not need explain the command line
5- when you deploy, you should see the chanes
*There is no migration path from SMS 2003 to SCCM 2012, they are basically creating it from scratch
**SCCM 2007 SP1 is not out yet and the only available version is CTP1, they are actually testing it in a lab environment
