Remove Thumb.db file

Thumb.db is is a cache of the current picture in that directory.
To remove it go for following
1.open "WINDOWS EXPLORER".
2.go to "TOOLS".
3.open "FOLDER OPTIONS".
4.go to "VIEW".
5.see 1st section "FILES & FOLDERS".
6.click on the "DO NOT CACHE THUMBNAILS".
Now the thumbnail file will be removed from your computer once u do this the file will be never created.