12345

12345, originally titled Lavender Dream, is the default Picture Password setup image. It was taken by Bernard Hymmen, a senior software engineer at Microsoft, on July 1, 2004. It depicts several lavender flowers on a blurred grass background.

It can be found in the Picture Password setup tutorial when you setting it for the first time; it is stored in and can be extracted from Windows.UI.PicturePassword.dll using resource hacking software. The image itself has a non-standard size (1563x1200) and most likely was never intended to be used as wallpaper (even though it was mentioned as 'Windows 8 secret wallpaper' on some Chinese Windows 8 forums back in 2012). Since the picture password set up interface has not changed since Windows 8, the same picture can be found in 8.1 and 10 under the same conditions.

History
This picture was taken by Bernard Hymmen, a senior software engineer at Microsoft, on July 1st 2004 on a NIKON D70 camera. Its original resolution is 3008x2000. The original image is available for download on Bernard's personal website. The picture used in Windows, comparing to the original one, was heavily edited; it is stretched in some places (noticeable by the slight pixelation on the lower flower stem), has an overlay that is especially noticeable near the top flowers and a flower in the center is completely different.