PENDING Issue with MECM not recognizing reinstalled Windows 11 devices

[AleksaCvijanovic]

Hello everyone,
I'm facing an issue in our environment. We have some older Windows 10 PCs that our technicians are reinstalling with Windows 11. The old Windows 10 systems had the MECM client installed, but the newly installed Windows 11 systems do not.
The technicians are reusing the same DNS/computer names for the new systems, and I believe this is causing the problem. MECM still sees the new Windows 11 machines as the old Windows 10 ones and does not recognize them as new devices.
I was able to fix it manually by running the Install Configuration Manager Client Wizard, and that worked. However, we have a lot of reinstalled systems like this, and doing it manually for each one is not practical.
Does anyone know a way to automate or properly handle this scenario?
Thanks in advance!

 

[Prajwal Desai]

Why haven’t you upgraded your existing Windows 10 devices to Windows 11 using ConfigMgr?

 

[AleksaCvijanovic]

Why haven’t you upgraded your existing Windows 10 devices to Windows 11 using ConfigMgr?

Those PCs were running very old versions of Windows 10 and had limited disk space for upgrading to Windows 11. We doubled their storage capacity by replacing the existing disks.