Perhaps this new piece of information might be helpful. The following copy and paste, taken today, came directly from the H&R Block website. It seems consistent with the Google replies:
To install your tax software, your computer needs to be able to meet several H&R Block software system requirements. Without these basic requirements, the H&R Block Tax Software might not be able to function properly on your computer.
The H&R Block Tax Software minimum system requirements for Windows and Mac are below.
Windows:
Operating system: Windows® 10 or higher.
Browser: Internet Explorer® 11 or higher
Mac:
Operating system: Mac OS® X 10.15.7 or higher.
Browser: Safari® 15.6.1 or higher.
General:
Hard-Disk Space: 170MB
Monitor: 1024×768, SVGA color monitor
Printer: Compatible inkjet or laser
Speakers and Sound Card: For videos / animations
You’ll also need an internet connection to meet H&R Block software system requirements.
