Porn! High Quality Thumbnails
This tweak is for browsing large folders that are filled with images. For most of this sites readers it will be porn. This works on images of all type and really anything that explorer creates thumbnails for which includes .avi's and plenty of other movie formats.
If you copy and paste the info below directly you won't see any changes since those are the default :)
Thumbnail size value is in pixels of how big you want each picture to be. Make this as big or as small as you would like.
Thumbnail Quality is a percentage that goes all the way up to 100. Lower quality ones will be created and displayed faster while decreasing the quality. On high end systems you could turn this up to 100 without any performance issues. On huge folders on older systems you may want to turn this down a bit so you can browse through them quicker.
Create a new .txt file and copy/paste the regedit info.
<-- Start copy at REGEDIT4 line -->
REGEDIT4
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer]
"ThumbnailSize"=dword:00000096
"ThumbnailQuality"=dword:00000090
<--End Copy above this line -->
rename that .txt file to a .reg file and double click it. You'll see this message:

Click Yes!

Now that that's done you may have to logoff and log back on for the registry changes to take affect.