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Change the Windows Thumbnail Preview Size

Well this is just a little registry hack that changes the size of the thumbnails of images that are displayed in windows explorer by default. The default size is relatively small and most people surely would like a bigger size for the thumbnails to get a better preview of the images. To do that you have to add a new entry called ThumbnailSize to the following registry key:

HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Explorer

Select Edit – New – Dword Value and name it ThumbnailSize. Double-click the new entry and select decimal and a number between 32 and 256. The default value for the thumbnail size is 100, if you would like a bigger size increase the number above 100, if you like smaller ones choose one below 100.

The new settings will become active after you restart your system.

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About the Author:Martin Brinkmann is a journalist from Germany who founded Ghacks Technology News Back in 2005. He is passionate about all things tech and knows the Internet and computers like the back of his hand. You can follow Martin on Facebook or Twitter.

Author: , Monday October 2, 2006 -
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Responses so far:

  1. jackal9 says:

    u can do the same thing using windows Microsoft PowerToys – Tweak UI, much easier,

    cheers,

  2. Arcan3 says:

    Nuthing like reghacking by hand =D

  3. Martin says:

    I prefer to do that by hand, it’s better so you understand what you are doing, where you are doing it and how to reverse it if something unforeseen happens.

  4. Peter says:

    Hmm, doesn’t seem to work for me. I tried 255 restarted my system but no difference… And by the way, how big will the images be with 255?

    EDIT: Nvm, I managed to miss the b button so it said ThumnailSize. Shall test again.

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