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What are SFCACHE files and how to open them

Are you having problems opening a SFCACHE file or are you simply curious about its contents? We're here to explain the properties of these files and provide you with software that can open or handle your SFCACHE files.

What is a SFCACHE file?

Files that contain the .sfcache file extension are created by the ReadyBoost feature that is included with the Windows Vista operating system.

Vista's ReadyBoost feature allows a user to plug a USB flash device into a USB port as a cache or virtual memory drive. This allows for faster caching and enhances the performance of a user's computer and reduces the problems that are commonly associated with limited computer memory.

The SFCACHE files are the cache files that are written to the added drive by the ReadyBoost application. SFCACHE files are active files, so they should not be disturbed when running on a system.

How to open SFCACHE files

Important: Different programs may use files with the SFCACHE file extension for different purposes, so unless you are sure which format your SFCACHE file is, you may need to try a few different programs.

While we have not verified the app ourselves yet, our users have suggested a single SFCACHE opener which you will find listed below.

Last updated: July 31, 2023

Various apps that use files with this extension

These apps are known to open certain types of SFCACHE files. Remember, different programs may use SFCACHE files for different purposes, so you may need to try out a few of them to be able to open your specific file.

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File.org helps thousands of users every day, and we would love to hear from you if you have additional information about SFCACHE file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.