The command is CONTIG (also available in 64-bit as CONTIG64), and it is a Sysinternals:
https://docs.microsoft.com/en-us/sysinternals/downloads/contig
You’ll want to put the appropriate binary in C:\Windows. Run it like this, in administrative CMD, it will get all of the hiddens it can for C drive (this is 64-bit):
contig64 -nobanner -accepteula C:$Mft contig64 -nobanner -accepteula C:$LogFile contig64 -nobanner -accepteula C:$Volume contig64 -nobanner -accepteula C:$AttrDef contig64 -nobanner -accepteula C:$Bitmap contig64 -nobanner -accepteula C:$Boot contig64 -nobanner -accepteula C:$BadClus contig64 -nobanner -accepteula C:$Secure contig64 -nobanner -accepteula C:$UpCase contig64 -nobanner -accepteula C:$Extend
Notice the distinct lack of slashes in the above!