File Screening – cannot load filter driver

The file screening minifilter driver is not attached to a volume. While the driver is detached, file screening enforcement and management is not available on the volume.

Cause

Possible causes include:

• The version of the filter metadata does not match any version supported by the driver.
• The metadata file is corrupt.
• There was an unexpected error (typically memory pressure).

The resolution for the first and second causes is to restore the metadata from backup. For the third cause, the recommended solution is to reattach the filter driver using the filter manager command-line tool or to restart the computer.