File Extension Database

Open SFCACHE File

An SFCACHE file is a cache file used by the Windows Operating System, starting with the Vista version, which at the user's discretion can be created on a flash memory device.

This functionality is actually adding virtual RAM, which Windows can access to help improve system performance.

You can use this through enabling ReadyBoost by right clicking on the icon of a flash memory device, then selecting 'Properties' and finally, clicking on the ReadyBoost tab by checking 'Use this device'.

This will create a temporary file called 'ReadyBoost.sfcache' on the flash disk.

Normally this file is hidden in the system and its size is configurable with the ReadyBoost application.

In order of data transfer speed, the physical RAM is first, as the fastest, then comes the SSD and flash memory and finally the conventional electromechanical hard disk. This is why ReadyBoost is used on flash drives.

SFCACHE files are part of the ReadyBoost function and considered system files, therefore they should not be opened, deleted or moved. To delete the SFCACHE file, you must disable ReadyBoost on the drive.

Frequently associated Windows objects:

RDBFileProperties.1

How Can I Open SFCACHE File on Windows

We researched and learned that the best way to open SFCACHE file is to find a SFCACHE file in question in Windows OS File Explorer and double click on it to launch the corresponding application.
If a SFCACHE file is not opened in an application and you instead get a "Windows can't open a file" error message you should try looking for an application which can open the file in question.
If you know the application which can open SFCACHE file then run it and see if there is a File->Open main menu option in the application.
If you don't know the application which function as SFCACHE file opener then try to search online for "SFCACHE viewer", "application to open SFCACHE file" or "open SFCACHE file" queries in the search engine you like.
Install the application you found and check if it can open SFCACHE file

How Can I Open SFCACHE File on Mac OS

We recommend to find a SFCACHE file in question in Mac OS Finder and double click on it to launch the corresponding application.
If a SFCACHE file is not opened in a Mac OS application and you instead get a "There is no application set to open the file" error message you can click on "Search App Store" in the error dialog and Mac OS will show you applications compatible with SFCACHE file.
If you know the Mac OS application which can work as SFCACHE file opener you can choose the "Choose Application..." option in the error box to associate the file extension and open SFCACHE file in it.
If you don't know the application which can open SFCACHE file then try to search for "SFCACHE viewer", "application to open SFCACHE file" or "read SFCACHE file" queries in the online search engine you like.
Install the application you found and check if it can read SFCACHE file

How Can I Open SFCACHE File on Android

If you downloaded a SFCACHE file on Android device you can open it by following steps below:

In the Android apps list on your Android device find "My Files" or "File manager" app and tap to start it.
Tap on "Downloads" folder inside the app.
You should see your downloaded SFCACHE file in that folder.
Tap on the file. If Android device supports opening the file you downloaded it will open in the corresponding app.
If file does not open you can look for the corresponding app that can open the file by searching Android App Store for the "SFCACHE".
If you cannot open the file with the apps from Android App Store it is possible that the file could only be opened on desktop platforms such as Windows or Mac OS. Try searching for "SFCACHE viewer", "SFCACHE file reader" online and see if any desktop applications can open it.
It is also possible that the file you downloaded is outdated and is no longer supported.

How to Open SFCACHE File on iPhone or iPad

To open SFCACHE File on iOS device follow steps below:

We advies to open Files app on your iPhone or iPad device. You can find it by swiping down on the home screen and typing "Files" in the search bar.
Tap on the Downloads folder on the Files app home screen.
You will see all files that you recently downloaded. Tap on the SFCACHE file to view it.
If you have the right app that can open it it will automatically launch and open your file.
If you don't have the app which can open it you need to serch Apple app store for "SFCACHE". This way you can find apps which can open SFCACHE files.
If this doesn't help it is possible that your file could be opened only by the desktop application. To find an app which can open it on desktop look for "SFCACHE viewer" or "SFCACHE file" online in your favorite search engine.