Sets the AllowCrossDeviceClipboard policy to 0 so clipboard contents are never uploaded to your Microsoft account for syncing to other devices. Local clipboard history (Win+V) still works if enabled. Reversible.
MaxTweaks applies this tweak with one click and snapshots your original setting first, so you can revert it cleanly at any time. A System Restore point is offered before batch changes, and every tweak links to its official source.
Get MaxTweaksOfficial documentation: https://learn.microsoft.com/en-us/windows/client-management/mdm/policy-csp-system