Do these steps in order

Install Windows 11

For new Windows 11 installations, refer to Microsoft's Download and install Windows 11 Knowledgebase article.

Use the latest application version to prevent other issues

Enable Auto-updates on your ESET application.

If the Auto-update fails or you cannot use it at the time, follow these steps to install the latest version:

Download ESET Endpoint Antivirus:

Download ESET Endpoint Security:

For more information, refer to the Install or upgrade ESET Endpoint Security or ESET Endpoint Antivirus on a client workstation Knowledgebase article.