I use H&R Block's tax software too, although on a Mac.
All things considered, blocking Win7 isn't that bad an idea. Win7 is dangerously insecure to use on the internet, and tax software needs to be connected to the internet for certain functions. So by continuing to support Win7 with the tax software, H&R Block would be implicitly supporting people who are likely to catch malware infections, etc. and their lawyers probably said to stop it.
That doesn't mean Microsoft didn't also apply pressure, of course.
There are days when pencil and paper look better and better.
This leads to my biggest complaint about Linux: The lack of tax preparation software like TurboTax. And filing with the online version of TurboTax (or any other online service) is NOT an option.
A family member of mine had a similar setup on Apple. Standalone accounting app and word-processing software.
The computer had an intermittent fault so she took it to the Apple Store.
Apple tech wiped the machine without asking and without attempting a backup, and installed a newer version of IOS. She tried to reinstall the apps and did a restore, but couldn’t reconnect the new version of the app to the existing data and couldn’t get the app to work.
Lost four years of business accounting data.
I’ve never known anyone with a PC have that experience. EVER.
An old printer not working after a win7-10 upgrade is trivial. If your printer is 7 years old, there’s a chance it’ll just stop working because of built-in managed obsolescence. I had a Panasonic laser printer do that - exceeded a built-in usage clock and it turned into a brick.