The label is most commonly associated with Windows 10 Enterprise . It is frequently found on original installation discs or ISO files downloaded from official Microsoft portals like the Microsoft Volume Licensing Service Center (VLSC) . Common Contexts
: Stands for "Free" build, which in Microsoft terms means a standard retail/production version (as opposed to a "Checked" or "CHK" build used for debugging). ces x64frev
grep -r "ces x64frev" / 2>/dev/null
Here is a write-up looking at the technical details, context, and implications of ces and x64frev in that environment. The label is most commonly associated with Windows