Opening SFCACHE Files

The SFCACHE file type is primarily associated with Windows ReadyBoost.

SFCACHE	File extension: SFCACHE
	File type:	cache file

What is an SFCACHE file?

SFCACHE files mostly belong to Windows ReadyBoost. These SFCACHE files are cache files created by Windows ReadyBoost. They store temporary data from flash drives to improve system performance and boot times.
Key details as outlined by FilExt.com:

ReadyBoost Cache: These files hold data used by the ReadyBoost feature for faster access.

System-Managed: Windows automatically creates and manages these files.

User Interaction: There is no need to open or edit these files manually.

FilExt.com note: More information is available on the Microsoft Docs website.

How do you open SFCACHE files?

You need a suitable software like Windows ReadyBoost to open an SFCACHE file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your SFCACHE file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a SFCACHE file directly in the browser:. Just drag the file onto this browser window and drop it.

Online SFCACHE Text Viewer

Choose your .sfcache file to analyze

or drag and drop it here

Online File Viewer

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Programs that open and convert SFCACHE files:

Windows ReadyBoost
See the previous paragraphs to learn more about the main application. SFCACHE files are often referred to as Windows ReadyBoost systems because this type of file is primarily created or used by this software.
Windows Vista (ReadyBoost Cache File) by Microsoft Corporation
ReadyBoost is Windows Vista feature that allows you to plug a USB flash memory device into a USB 2.0 port on a PC and use it as a cache or virtual memory. The advantage is that it is much faster to cache to the USB drive than caching to your hard disk, speeding up your system and enhancing overall performance. The USB device must be capable of 2.5MB/sec throughput for 4K random reads and 1.75MB/sec for random writes. Since this file is in active use it should never be disturbed or opened. Related links: ReadyBoost Tutorial

Technical Data for SFCACHE File Extension

File classification:

System

Related files:

tmp, sys, cache, xml, exe, jpg, zip, search-ms, hdmp, cdat, dat, bak

Related links:

ReadyBoost Tutorial

an sfcache cache file is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with SFCACHE files

Associate the SFCACHE file extension with the correct application.
Update your software that should actually open cache files. Because only the current version supports the latest SFCACHE file format. Search, therefore, e.g. on the manufacturer website after an available Windows ReadyBoost update.
To make sure that your SFCACHE file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .SFCACHE file online - secure, fast, and no downloads needed.