Hi @madanmodiksha, sorry to hear about your issues. I understand you are unable to actually install the software and the crash occurs during the attempt to install? In this case I would check a few steps:
– Ensure you are logged in as administrator, or have admin rights…
– Try turning off any aggressive antivirus or firewall software that might be running.
– Clear the temp files directories below and try installing again
-Download the latest installer online @ https://gaming.tobii.com/getstarted/
Can you choose ‘program details’ and show the output in the dialog? Also please let us know your OS and hardware specifications in detail please.