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Adjust Size Of Thumbnails

By: Arie Slob

There's an easy way to change the size of the thumbnails that are used in Windows Explorer's thumbnail view:

  1. Start the Registry Editor
  2. Go to HKEY_CURRENT_USER \ Software \ Microsoft \ Windows \ CurrentVersion \ Explorer \
  3. Right-click an empty space in the right pane and select New > DWORD
  4. Name the new value ThumbnailSize
  5. Double-click this new value, and enter a value between 32 and 96 (hexadecimal)*
  6. Close the registry editor

*) There have been information that the value can go up to 256 (hexadecimal), but I have not been able to set this value over 96 on my system. Frankly I doubt if higher values are indeed possible: 96 hex is already 150 (pixels) decimal. A thumbnail of 256 hex would be 598 pixels wide!

To return to the default, just delete the ThumbnailSize value.

The registry hack above will change the settings for the current user only. To change them for all users, add the key to HKEY_LOCAL_MACHINE \ Software \ Microsoft \ Windows \ CurrentVersion \ Explorer \ (you'll need administrative privileges to do this).

150 pixel wide thumbnails

This is one of the functions performed by:

Tweaking Toolbox XP