Lately there are multiple report on SQL server fails to be installed on Windows 11 OS, following the information provided by Microsoft the most common issue for this failure is  system disk sector size greater than 4 KB.

in any case of installing AxTraxNG\ AxTraxPro on a new win11 PC we recommend the follow: 

1. Follow the instruction on the following Article: https://learn.microsoft.com/en-us/troubleshoot/sql/database-engine/database-file-operations/troubleshoot-os-4kb-disk-sector-size to set the disk sector size to 4k.

2. Reboot the PC

1. download the SQL express installer from: http://u.pc.cd/h5BctalK

2. Run the SQL installer and follow this Article to install a VITRAX SQL server instance manually.

3. move forward with the AxTraxNG installer and skip the SQL installation during the installation: