The Sage 300 CRE C: drive filled up and caused the Data folders to look as if the rights had been removed.
It was caused by .slg files like this: "C:\Users\Public\Documents\GlobalSettings\SageReplicator\4148 - 131882004005307603.slg"
There were only 55 files, but it added up to over 150GB.
There is nothing on the Sage website. Anyone else have this problem?