To get iMessage on Windows using Intel Unison follow the steps below:
Download Intel Unison from the Microsoft Store.
Open the app, accept the terms and conditions to continue, and choose Add your phone
Scan the QR code on your PC using your iPhone and download the mobile app.
Open the app, accept the terms and Continue, and allow permissions for contacts, photos, Bluetooth, and local network. Tap on Scan QR code and scan the code on your PC again. Tap on ‘Get Started’ on your iPhone.
Now, on your Windows system, open the Unison app and go to ‘Send messages’. Finally, click on ‘Compose a new message’ and send it to your contact. In this way, you can send and receive imessage on your PC.
I was setting up iMessage on Windows using Intel Unison when my laptop started glitching — I took it to the Authorised Service Center, and they fixed it quickly so I could finish the setup without any issues.