- macOS 13+ Show dock icon
- macOS 13+ Show menu bar icon
- Prevent system from sleeping…
- Do not show confirmation when closing…
To access UTM preferences, either press ⌘+, or from the menu bar, select UTM → Settings….
If enabled, when every window is closed and there are no headless VMs running, UTM will quit as well.
If disabled, on next launch, the dock icon will be hidden. This is useful for headless mode. If this option is disabled, the menu bar icon must be shown and UTM will keep running even if all windows are closed.
If enabled, a menu bar extra for UTM will be displayed. This allows you to quickly start and stop a VM as well as quit UTM.
If enabled, system idle sleep will be disabled when any VM is running (including headless ones).
UTM will warn you when you attempt to close a window of a running VM or when you attempt to quit the application while there are still running VMs. Not properly shutting down a guest could result in data loss. This option will disable the prompt.
If enabled, do not allow resizing of the VM window. If disabled, resizing the VM window will zoom/scale the content if SPICE guest tools are not installed or the VM uses Apple backend. If SPICE guest tools are installed and the VM uses the QEMU backend and this option is disabled, the guest will attempt to change resolution to match the window size.
For privacy reasons, you may not want UTM to automatically capture a screenshot every 30 seconds and store it in the .utm package. Note that existing screenshots will not be deleted until the next time the VM is started.
When a QEMU backend VM supports GPU acceleration, one of a number of renderer backends can be selected. There are certain applications that only work (or performs better) with a specific backend. If you are unsure, leave it to default.
By default, the operating system will synchronize the rendering of each frame to the refresh rate of the current display. However, there are cases where performance intensive applications may cause frame stalls and result in inconsistent frame times. You can use this option to lower the target frame rate in order to have a more consistent experience.
This allows you to specify the audio backend for QEMU VMs. The default will select the best available backend. If the selected backend is not available for any reason, it will fallback to another option. CoreAudio has lower latency but does not support audio input (microphone).
When using the built-in console, the Option key can be used as the Meta key. This means that the Esc key is set before the character that was pressed. This is useful for applications like Emacs which makes use of the Meta key. The downside is that international text entry is also handled by the Option key and so enabling this breaks that. You can toggle this option (per-window) while using the console with the key shortcut Command+Option+O.
This is in addition to the usual way of generating a right click which is based on the system preference for a secondary click.
The default combination is Control+Option which can be used to capture/release the mouse when inside a VM window. That button combination collides with the VoiceOver’s hot key.
By default, Caps Lock is treated as a modifier state which is synchronized with the guest. However, some users (for example users of screen reader software) may find it useful to treat Caps Lock as a raw key. If enabled, the Caps Lock state may go out of sync with the host.
For keyboards which do not have a num lock button, this will ensure the guest always treat the numeric pad as number keys. Since macOS does not support num lock, we do not attempt to synchronize the host num lock state (and keyboard LED) so this may result in the guest and host having the num lock state out of sync.
Scroll wheel and gestures are translated to mouse wheel events sent to the guest. If this option is enabled, the polarity of the event is inverted.
When a new USB device is plugged in, the currently active VM will ask the user if they wish to connect the device to the VM. This option will disable that prompt.