.SFCACHE File Extension

There is only one file type that uses the .SFCACHE extension:

ReadyBoost Cache File

ReadyBoost Cache File
  • Developer Microsoft
  • Popularity
    4.1 (512 votes)
  • Category System Files
  • Format N/A

An SFCACHE file is a cache file used by Windows Vista and 7 that may be created on a flash memory device. It adds additional memory that Windows may access as virtual RAM, which may help improve system performance.

ReadyBoost can be enabled by right-clicking the icon of a flash memory device and selecting "Properties." Then click the ReadyBoost tab and check "Use this device." This will create a temporary file named "ReadyBoost.sfcache" on the flash disk.

Software's name License Platforms
Microsoft Windows Microsoft Windows Commercial Windows

Updated: September 27, 2017

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