
You should be able to see the effects immediately when you open a new Explorer window. Choose Decimal give it a value from 32 to 256. Give it a name of Thumbnail Size and then double-click on it to edit it. If it’s not there, you will have to right-click in the right-pane and choose New – DWORD (32-bit) Value. Now on the right pane, you should look for a key called ThumbnailSize. HKEY_CURRENT_USER – Software – Microsoft – Windows – CurrentVersion – Explorer

Then navigate to the following registry key in the left pane: If you want a custom size for your icons, you can open the registry editor by going to Start and then typing in regedit. Instead, you have to click on the View tab and there you will see the same options in the Layout box.Īnyway, back to the registry hack. In Windows 8, the Explorer interface has change a little bit and Microsoft removed the whole slider option. You can adjust the size by moving the slider in Windows 7. The only clear advantage to using the registry hack at all in Windows Vista and higher is if you want to use a custom size for the thumbnails.īy default, in Windows 7 and Windows 8, you can choose from Small, Medium, Large and Extra Large icons. If you decide to use the registry hack, then you can change the size of the thumbnails on Windwos XP, Windows Vista, Windows 7 and Windows 8 since the same hacks works for all these versions. Now that is much better! 😉 I can actually see what’s going on in a picture! Cheers! The second method for changing the thumbnail size is to modify the registry. Now when you browse through your photos in My Pictures or anywhere where you have thumbnails turned on, you should see something like this: Of course, it will take more resources when browsing pictures, but if you have a fairly new computer, it should not be a problem. Also, make sure to keep the Image Quality closer to high so that the thumbnails look nice. After you have opened the program, click on Explorer from the left hand menu and then click on Thumbnails.Ĭhange the default size from 96 to something higher. Once you install the program, go to the Start Menu and click on All Programs – Powertoys for Windows XP – Tweak UI. Using this program, we can quickly and easily change the default 96 pixels size of thumbnails to something more visible.


Previously, I had written about a cool little utility that you can get for free from Microsoft called Tweak UI that lets you modify and tweak a bunch of Windows XP settings. Scroll down past Tweak UI to learn about adjust thumbnail sizes in Windows 7/8. If you want to see them bigger than that, you’ll have to use a third-party program. Unfortunately, the max size for icons in Explorer is 256×256 pixels.

That size is simply not large enough, especially for anyone with vision problems! Luckily, there’s an easy way to modify these settings so that the thumbnails can be any size you want up to 256×256.
