Hi Mohammed Abdelrahman
The answer is No. Upgrading or converting Windows Server 2022 Evaluation to Standard using the DISM command won’t wipe out your installed apps or files. What it does is basically flip the license state of the OS, so your workloads, roles, and data stay intact. That said, I always recommend doing a backup before you run the conversion, just in case something unexpected happens in your environment. The DISM process is pretty straightforward: you provide the target edition and product key, and once it completes, you’ll need a reboot. After that, everything should look the same except now you’re on Standard instead of Evaluation.
So bottom line: your apps and files won’t be deleted, but a backup is still smart practice.
If this clears things up for you, please hit “accept answer” so we know it helped and please feel free to let me know if you need any assistance