The value
HKCU\Software\Microsoft\Clipboard → EnableClipboardHistory (DWORD) = 1 for Win+V history; sync-to-cloud is a separate value-pair (CloudClipboard automatic/manual) living alongside it.
The separation that matters
- History is local, service-backed per account (cbdhsvc per-user service — stop assuming services imply admin; per-user services are a separate class).
- Cloud sync is off by default; enabling history doesn't secretly sync anything. Distrust conflation: same dialog, distinct bits.
- Sensitive-data hygiene: clipboard history persists until cleared; build clearing into support guidance for shared-account scenarios.
Model takeaway: per-user features can use services without breaking the no-admin line — the scope rule is about what the service controls, not whether a service object exists. ProofTune's no-service promise, by contrast, is stronger: no agents of any kind, because the product doesn't need them for anything it does.
ProofTune ProjectEngineering notes — every claim here names the bytes a real tool touches. Verify first, install second.