SFCACHE File Extension

TIP: Run a Free Scan for .SFCACHE File Errors.

.SFCACHE files are used by ReadyBoost, a feature first used by the Microsoft Windows Vista operating system.

ReadyBoost allows you to plug a USB flash memory devide in to an available USB 2.0 port on your PC which is then used to as virtual memory (cache). This results is faster data access speed and therefore improved system performance.

While using ReadyBoost, these files must not be accessed or deleted.

How to Open .SFCACHE (ReadyBoost Cache File) files

Windows

Vista

Additional extension information

File type:	System
Popularity:	Widespread
Author:	Microsoft
MIME type:	Not specified

Related links

General ReadyBoost Information

Visitor comments

Desiree Quillan

2008-12-08 10:05:44

Hi,I bought 1 USB Flash Drive Microvault at 4GB, When I connect it to the computer (Windows Vista) it didn't work when I try to save the files on it.The Display on the screen would be the following: 1.Read me v21 file folder2.Readyboost Cache File3. Vertual Expander_v214. Decompression Vertual Expander5. Vertual Expander_Flash demo21Probably there's something that I really don't know or do I have to download the software or whatever. please help me how to use them. Thank you.

Bruno Gonzalez

2009-08-21 19:38:56

I just bought an 8gb USB key, tried it the first as readyboost (on vista) it worked well but not that I want to use it for the second time it's not working and it tells me about cache! How do I use the key? Readyboost?

David Holt

2009-08-24 10:44:07

When I remove mine and plug it back in, it doesn't start with AutoPlay pop-up like first time. Explorer shows me the drive contains ReadyBoost. The light on my USB key flashes for a while.Check ReadyBoost Properties, make sure it's using the device you just plugged in.

Rene Andersen

2010-03-13 19:54:29

ReadyboostI unknowingly confirmed/clicked the install File Extension .SFCACHE which has blocked storage on the USB Drive. All the fixes including SpeedyPC and ParetoLogic's FileCure want $39 for me to use this. I'm not interested in paying this money to access this $13.00 USB

kuldip

2010-09-19 04:16:42

How can I delete the readyboost file from my USB drive? It contains 4gb of data and I only have 4gb free out of 8gb.

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ReadyBoost Cache File