What Is Human Interface Device Daemon? Is It Safe to Disable at Startup?
hidd is Apple's Human Interface Device daemon on macOS. It is a core system process and is generally safe and should not be disabled.
- Verdict
- Keep runninghidd is a core macOS input and device-management daemon that should stay enabled for normal keyboard, mouse and other HID hardware support.
- File name
- hidd
- Publisher
- Apple Inc.
- Platforms
- macOS
- Reviewed
What Is hidd?
hidd is the Human Interface Device daemon in macOS. It is an Apple system process that helps macOS talk to input hardware such as keyboards, mice, trackpads, game controllers and some other USB or Bluetooth devices.
In plain terms, it is part of the layer that handles user input. If hidd is not working properly, you may see problems like delayed input, devices disconnecting, buttons not responding, or unusual behavior from external controllers and accessories.
This is not a normal login app that users add to startup. It is a built-in macOS background process managed by the system.
Is It Safe?
Yes — if it is the real Apple process. hidd is a legitimate macOS component published by Apple.
Because system process names can be copied by unwanted software, it is still worth checking if something looks suspicious. In Activity Monitor, select hidd, inspect its file path, and confirm it points to a normal macOS system location. You can also check that it is signed by Apple in Finder or with system code-signing tools.
If a process named hidd is running from a user folder, Downloads, a temporary folder, or another unusual location, that is not normal and deserves investigation.
Should I Disable It at Startup?
No. Keep it enabled.
hidd is part of macOS itself, not an optional helper app. Disabling or removing it is not a normal maintenance step and could interfere with input devices or other hardware features.
If you are troubleshooting startup or background activity, look for optional third-party login items first. hidd is not a good target for cleanup.
Why Is It Using High CPU or Memory?
Short spikes can happen when you connect or remove hardware, wake the Mac, pair Bluetooth devices, or use accessories that send a lot of input events.
If usage stays high, common causes include:
- a misbehaving mouse, keyboard, tablet or controller
- a faulty USB hub, dock or adapter
- Bluetooth connection problems
- driver or helper software for third-party peripherals
- repeated connect/disconnect events from external hardware
Practical checks:
- Disconnect non-essential USB and Bluetooth accessories, then reconnect them one at a time.
- Restart the Mac.
- Update macOS and any peripheral software from the hardware vendor.
- Test without docks, hubs or adapters if possible.
- Check whether the problem appears only with one specific device.
Do not force-disable hidd as a fix. If it is stuck, a restart is the safer first step.
How to Disable or Remove It
You generally should not disable or remove hidd. It is a protected macOS system component, and there is usually no supported reason to remove it.
If you only want to reduce its activity, focus on the hardware or third-party software triggering it:
- remove unnecessary peripheral utilities from Login Items
- unplug problem accessories
- unpair and re-pair Bluetooth devices
- uninstall third-party device tools you no longer use
If you suspect impersonation, verify the process path and Apple signature before taking action.
Where Kudu Helps
Kudu can help you confirm whether high resource use is coming from hidd or from another process around the same time. Use Performance Monitor to watch CPU and memory use live and compare it with other apps and background processes.
On macOS, Kudu's Startup Manager can help you review Launch Agents and other login items so you can disable optional third-party helpers that may be interacting with your devices. That is usually the safer place to optimize startup than touching Apple system processes.
If you think unusual persistence is involved, Kudu's Malware Scanner can check for suspicious background items and other signs of unwanted software. It complements your existing security tools rather than replacing them.
Frequently asked questions
- Can I quit hidd in Activity Monitor?
- You can force quit many processes, but you should not treat `hidd` as something to remove or disable. If it is misbehaving, restart the Mac and check connected devices instead.
- Is hidd a virus?
- The real `hidd` from Apple is not a virus. If a process with that name is running from an unusual location or lacks an Apple signature, investigate it.
- Why does hidd get busy when I connect a controller or mouse?
- That is normal for short periods because macOS is handling input hardware events. Constant high usage usually points to a device, connection, or third-party peripheral utility problem.
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