Windows 7 wallpaper hack

I got my windows 7 loaded laptop, it is HP G71 model, on Dec 03, 2009. I started personalizing it. As part of that I edited the wallpaper entry.

I found a defect, the wallpaper would always stretch and no other settings could be enabled.

Hacking:

So I searched the registry with "Wallpaper" key word and Bingo. I hit the right place.
HKEY_CURRENT_USER\Control Panel\Desktop\WallpaperStyle is the entry used to set the value. I changed this value to 4 and thus fixed the issue.