What is ctkd?
If you see ctkd running on your Mac, here is what this smart card and security key process does.
Mac
macOS
301 posts
What is touristd?
If you see touristd in Activity Monitor or in a firewall log, here is what this macOS process does.
Mac
What is nesessionmanager?
If you see nesessionmanager running on your Mac, here is what this VPN and network extension process does.
Mac
Useful macOS defaults: Menu Extras
Handy defaults write commands for com.apple.menuextras, controlling legacy menu bar items.
Mac
What is bridgeOSUpdateProxy?
If you see bridgeOSUpdateProxy running on your Mac, here is what this firmware update process does.
Mac
What is SafeEjectGPUStartupDaemon?
If you see SafeEjectGPUStartupDaemon running on your Mac, here is what this eGPU ejection process does.
Mac
What is deleted_helper?
If you see deleted_helper running on your Mac, here is what this storage management helper process does.
Mac
What is tailspind?
If you see tailspind running on your Mac, here is what this background diagnostic process does.
Mac
Useful macOS defaults: Accessibility
Handy defaults write commands for com.apple.universalaccess, controlling accessibility and visual settings.
Mac
What is PerfPowerServices?
If you see PerfPowerServices running on your Mac, here is what this performance and power management process does.
Mac
What is lskdd?
If you see lskdd running on your Mac, here is what this Launch Services process does.
Mac
What is ionodecache?
If you see ionodecache running on your Mac, here is what this I/O registry caching process does.
Mac
What are biomed and biometrickitd?
If you see biomed or biometrickitd running on your Mac, here is what these biometric processes do.
Mac
What is dprivacyd?
If you see dprivacyd running on your Mac, here is what this differential privacy process does.
Mac
What is photoanalysisd and why is it using so much CPU?
If photoanalysisd is using a lot of CPU on your Mac, here is what it does and how long it will take.
Mac
Useful macOS defaults: Xcode
Handy defaults write commands for com.apple.dt.Xcode, controlling the editor, build system, and hidden features.
Mac
What is wifivelocityd?
If you see wifivelocityd running on your Mac, here is what this Wi-Fi performance process does.
Mac
What is rapportd and why does it want incoming network connections?
If your firewall is asking about rapportd wanting incoming connections, here is what this macOS process does.
Mac
What is applekeystored?
If you see applekeystored running on your Mac, here is what this Secure Enclave keystore process does.
Mac
What is AssetCache?
If you see AssetCache processes running on your Mac, here is what this content caching service does.
Mac
What is apfsd?
If you see apfsd running on your Mac, here is what this Apple File System process does.
Mac
What is coupond?
If you see coupond in Activity Monitor, here is what this macOS process does.
Mac
Useful macOS defaults: Keyboard
Handy defaults write commands for com.apple.keyboard and related domains, controlling key repeat, function keys, and input behaviour.
Mac
Useful macOS defaults: Trackpad
Handy defaults write commands for the trackpad, controlling gestures, tap to click, speed, and more.
Mac
What is avbdeviced?
If you see avbdeviced running on your Mac, here is what this audio/video networking process does.
Mac