To Enlarge Thumbnail Images

In Windows XP, you have the option of viewing a little thumbnail image of pictures on your hard drive as a quick preview of the image.
If you would like to make these images a little larger, here's how:

• Go to Start>> Run. Type in: regedit [Enter] or click OK.
• Drill to the following registry key:
  HKEY_CURRENT_USER\Software\Microsoft Windows\CurrentVersion\Explorer
• Click once on the Explorer entry to empty its contents into the right pane.
• Look for an entry named ThumbnailSize. Once you find it, double click this entry and change the hexidecimal value to anything between 32 and 96.
• If this entry does not exist, right click an empty area within the right pane and select NEW>> DWORD. Name this value: ThumbnailSize
• Then, double-click this new DWORD entry and insert a value between 32 and 96.
• Exit the Windows Registry saving your changes.
• It may be necessary for you to reboot your system for the changes to take effect.

IMPORTANT NOTE -

The following tip involves editing the Windows Registry. Be sure that you make a backup copy prior to making any changes to your registry. Please proceed with caution!

To change the Thumbnail Image Settings (Windows XP)
These settings control the format of the saved thumbnail images, including the image size and quality.

Open your registry and find the key below.

Create a new DWORD value, or modify the existing value, called "ThumbnailSize" and set it to the size of the image in pixels. The default is 96.

Create another new DWORD value, or modify the existing value, called "ThumbnailQuality" and set a number that represents the quality percentage between 50% and 100%, the higher quality the larger the file. The default is 90.

Restart Windows for the changes to take effect.