Apple Virtual Machine 1 · VirtualMac2,1

Apple Virtual Machine 1 · macOS 15.1

24B83Unsigned

Catalog data · Last updated: Oct 21, 2026, 7:26 PM UTC

Restore IPSW for Apple Virtual Machine 1: macOS 15.1, build 24B83.

Firmware information

Version: macOS 15.1
Build: 24B83
IPSW: Mac restore IPSW, not a macOS installer
Size: 14.66 GB
Release date: Oct 28, 2024, 3:37 PM UTC
File name: UniversalMac_15.1_24B83_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_15.1_24B83_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-25662aad6a3849eca5f368dc6768356f7d9a939f05463989d18c04d36990dec105a

SHA-1eeddb24db9a655c287d2145ee852c9e39e15b44c

MD5689ff965494f185b218d073dcbfb5861