Apple Virtual Machine 1 · VirtualMac2,1

Apple Virtual Machine 1 · macOS 13.4

22F66Unsigned

Catalog data · Last updated: Oct 22, 2026, 4:28 AM UTC

Restore IPSW for Apple Virtual Machine 1: macOS 13.4, build 22F66.

Firmware information

Version: macOS 13.4
Build: 22F66
IPSW: Mac restore IPSW, not a macOS installer
Size: 11.87 GB
Release date: May 18, 2023, 5:20 PM UTC
File name: UniversalMac_13.4_22F66_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_13.4_22F66_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-256472192932e4152d20d0504641df4c8574929903f2f3244f45b46af7d5b2e4606

SHA-17d7d939fe872fad8fd4c77ba8f2cfdc255a65010

MD5aa8e6e06a09d631432d91d2de324c47b