Where is the default user account images folder in Windows 7?

Question

Similar to this question: Where is the wallpaper folder in Windows 7?

But I'm looking for the location of the default user account images (such as the flower in the image below):

Answer 1

In this directory:

C:\ProgramData\Microsoft\User Account Pictures\Default Pictures

Note that the ProgramData folder is hidden and not visible by default.

If you rename/replace user.bmp (by default, the flower image in Windows 7) with a different image of the same name and dimensions, it will replace all the user account photos by default.