Article ID: 191811
When you attempt to view graphics files in Thumbnail view or in Preview mode when you are viewing a folder as a Web page, certain Joint Photographic Experts Group (JPEG, or .jpg) files may not generate an image. However, these files do open correctly when you double-click them.
Typically, .jpg files are encoded in a three-channel, RGB format. It is possible, in some programs, to create .jpg files that are encoded in four- channel, CMYK color format. Windows is unable to display .jpg files that are not in three-channel, RGB color format.
For additional information about multimedia file formats, click the article number below to view the article in the Microsoft Knowledge Base:
108803Note that similar behavior can also be caused by incorrect file associations. For additional information about Thumbnail view, click the article numbers below to view the articles in the Microsoft Knowledge Base:
(https://support.microsoft.com/kb/108803/EN-US/ )Multimedia Glossary
(https://support.microsoft.com/kb/178746/EN-US/ )Thumbnail Views Not Displayed for Some File Types
(https://support.microsoft.com/kb/176882/EN-US/ )How to Enable the Thumbnail View for Folders in Windows Explorer
Article ID: 191811 - Last Review: June 22, 2014 - Revision: 5.0
Retired KB Content Disclaimer
This article was written about products for which Microsoft no longer offers support. Therefore, this article is offered "as is" and will no longer be updated.