I am having exactly the same issue. It keeps saying Unknown error
Hi Jennifer, thank you for the response. We all used the same installer and it is version 6. Thanks. I will try using setup from the link you’ve provided. Thanks
Hi Arnab, could you confirm Internet is connected when you enter the license, which is necessary?
If Internet is normal, and program is exactly v6, then we need your help for further analysis. Please take a screenshot of error screen and send feedback to IObit support team, our staff will help you. Thanks so much! (Send Feedback icon is at right top corner of main screen)