Apple Virtual Machine 1 · VirtualMac2,1

Apple Virtual Machine 1 · macOS 13.1

22C65Unsigned

Catalog data · Last updated: Oct 21, 2026, 8:26 PM UTC

Restore IPSW for Apple Virtual Machine 1: macOS 13.1, build 22C65.

Firmware information

Version: macOS 13.1
Build: 22C65
IPSW: Mac restore IPSW, not a macOS installer
Size: 11.44 GB
Release date: Dec 13, 2022, 6:12 PM UTC
File name: UniversalMac_13.1_22C65_Restore.ipsw
Download host: updates.cdn-apple.com

IPSW download

Check the model and signing status before downloading.

Download IPSW

Download hostupdates.cdn-apple.comUniversalMac_13.1_22C65_Restore.ipsw

The catalog marks this build as unsigned. A normal restore may not be accepted.

Back up before you restore. A restore can erase the data on the device. The identifier has to match, and a file you can download may still be rejected for restore. This is Mac restore firmware, not a regular macOS installer. The restore steps depend on the model.

Checksum

SHA-25698dd167fb42b345efbadc62c8bf74faa98ec3d7e6079085dc92ef98c7797b14b

SHA-110acbcbfb18bc4c9f00ec58c6137e963eb51beba

MD5f8ad0aeaf373dd48aeb5daefb89f7370