To put the brand you like do the following:
1) Get a Bitmap Image file 128 x 128 pixels of your preference. (May work with other sizes, not sure)
2) Change the filename to Brand.bmp. (You can change the name, but need to remember what you use)
3) Copy the Bitmap to "C:\Windows\System32\oobe"
4) Make a registry file with this info:
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\Curr entVersion\OEMInformation]
"Logo"="c:\\windows\\system32\\oobe\\Brand.bmp "
"Manufacturer"="My Brand"
5) Substitute "My Brand" with what you like and remember to use the same name you used to create the bitmap image in the logo line.
6) Execute the registry file by double click.
7) Right-Click over "Computer" and select properties to see your work.
Source
Thanks B26354!