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Change the Thumbnail Image Settings (Windows XP)

These settings control the format of the saved thumbnail images, including the image size and quality.

This tweak can be easily applied using WinGuides Tweak Manager.
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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.

Registry Editor Example
|NameTypeData|
|(Default)REG_SZ(value not set)|
|ThumbnailQualityREG_DWORD0x0000005a (90)|
|ThumbnailSizeREG_DWORD0x00000060 (96)|
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|HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\...|
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Registry Settings
User Key: [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer]
System Key: [HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Explorer]
Value Name: ThumbnailSize, ThumbnailQuality
Data Type: REG_DWORD (DWORD Value)
Value Data: Size in pixels, Quality Percentage

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Disclaimer: Modifying the registry can cause serious problems that may require you to reinstall your operating system. We cannot guarantee that problems resulting from modifications to the registry can be solved. Use the information provided at your own risk.

Last modified: September 11, 2002