[DATA-LOSS RISK] Sets CacheIsPowerProtected = 1 on disk devices, turning off Windows write-cache buffer flushing. This can improve disk throughput/latency but risks data loss / corruption on a power cut or crash — only sensible on a desktop with a UPS or battery-backed cache. Reboot required. Marked Expert. Reversible (revert sets it back to 0); exact prior per-disk state isn't snapshotted.
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-server/storage/disk-management/