Displays or alters the compression of files on NTFS partitions. COMPACT /C | /U /S[:dir /A /I /F /Q filename . /C Compresses ...

Displays or alters the compression of files on NTFS partitions.  COMPACT [/C | /U] [/S[:dir]] [/A] [/I] [/F] [/Q] [filename [...]]    /C        Compresses the specified files.  Directories will be marked             so that files added afterward will be compressed.   /U        Uncompresses the specified files.  Directories will be marked             so that files added afterward will not be compressed.   /S        Performs the specified operation on files in the given             directory and all subdirectories.  Default "dir" is the             current directory.   /A        Displays files with the hidden or system attributes.  These             files are omitted by default.   /I        Continues performing the specified operation even after errors             have occurred.  By default, COMPACT stops when an error is             encountered.   /F        Forces the compress operation on all specified files, even             those which are already compressed.  Already-compressed files             are skipped by default.   /Q        Reports only the most essential information.   filename  Specifies a pattern, file, or directory.    Used without parameters, COMPACT displays the compression state of   the current directory and any files it contains. You may use multiple   filenames and wildcards.  You must put spaces between multiple   parameters.