Intune enrollment of a device wiped from Intune

Hi, you can re-register them if you have properly removed them. By "properly," I mean:

1. Deleting the hash and serial numbers for the devices.
   The reason for this is that if you try to re-register devices and their serial numbers, the process will fail because Intune recognizes the serial numbers and will complain that the devices are already registered.
2. Have you used the "Wipe" option?The wipe performs a complete reset to the device's factory settings:
   • Deletes all personal and corporate data
   • Deletes all settings and applications
   • Unregisters the device from Azure AD and Intune
   • Returns the device to its original state
3. Wipe:

Steps to Verify:

1. Check Intune > Devices > Windows to see if the devices are removed.
2. Check Intune > Devices > Enrollment and scroll down to Windows Autopilot > Devices to verify if the serial numbers are deleted.
3. As you mentioned earlier, also check Entra ID > Devices.

For example, I have re-registered my Windows 11 device that I used in Hyper-V 15 times without any issues.

One more thing: check the Device Restrictions policy. By default, it allows up to 15 devices per user. If this policy has been modified to, say, 2 devices per user, the user might have already reached the limit.

Let me know if you need further help!