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What is the .THM File Extension?

.THM File Extension Description:

There are three versions of the .thm file extension. The first .thm file is an image thumbnail created to represent its larger version. This is quite common in cases under Microsoft Windows operating systems, like XP and Vista.

Considered as a raster image file, this version of the .thm format contains arrays called pixels. Each pixel holds a color value ranging from 0 to 255 within the RGB (Red, Green, and Blue) color palette. The .thm image format will contain a miniaturized version of the original pixel, which is quite useful in browsing through multiple images in a folder. Such is the case on many systems used in mobile phones and digital cameras.

The second version of the .thm file extension is also a thumbnail file for videos. The first scene of the video is converted into raster image and saved in a .thm format. This is also being used for browsing purposes. Note, however, that these are static images and are not thumbnail versions of the actual video.

The third version of the .thm file is used by Sony Ericsson mobile phones as a theme file. Themes are sets of images that are used to customize the user interface of mobile phones, such as windows, texts, text colors and formatting, icons, wallpapers, and other images. Some themes also incorporate sound data, but depend on the model of the mobile phone that they are created for.

Note, however, that not all files with the .thm extension are compatible with all models of Sony Ericsson mobile phones, because each model is different according to settings, configurations, and interface design. Opening a .thm file from another mobile phone model would result in an error that includes the inability to open the said file.

Author: Microsoft Corporation
Author URL:
Related Applications: Microsoft Picture and Fax Viewer, ACDSee, Sony Ericsson OS for their mobile phone
Common Path:


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What Causes .THM files Errors?

A typical and frequent cause for .THM files errors is failure in the Windows registry - fixing is essential to prevent additional corruption in other software and/or system devices. Dangers include system device damage, blue screen errors and fatal crashes.

Symptoms of .THM files Errors:

.THM files errors produce numerous symptoms, including: personal computer locks while starting up or shutting down, programs freeze up, decreased personal computer performance, case speaker beeps, problems saving files, slow system behaviour and failure while installing software.

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What is the .THM File Extension?    |    Scan for .THM File Extension Errors    |    How to Fix .THM File Extension Errors