Anyone Recommend Logitech Setpoint for both Performance MX and K800 ?

I own these old pieces of hardware that are in new condition and am darned if I will replace them. They are working at the moment half-heartedly in that Setpoint 6.67.83 offers limited mouse programability due to a wrong product picture and although it shown K800 in Unify, it wont show up on the main software page.

I recently did an in-place upgrade to repair my Win 10 system and lost the software which showed them both.
There is an old CD in my collection that is for version 4.47. Is that too old as it doesn't seem to do anything.

Windows offers very limited help with keyboard & mouse settings. Logi Forums seem not to work any more.

Thanks for the help. That first link has no downloads available.
The others are OK but for some unknown reason my mouse is wrongly shown again and the keyboard, whilst shown under pairing, is not given its own TAB.
Same problem.

I had no idea that Firefox could be so limiting. In Edge I see that clearly . But something strange.....I see my Keyboard and can do what I was wanting with it now, but although the mouse is detected there is no page for it?
I've tried unpairing and re-pairing but it remains "Inactive" even after a reboot.
Also is there a way of showing this software in the Notification area?
BTW version of this is: 9.70.68 - should I perhaps let it update?

OK, I tried every version of software I could find and at last Setpoint 6.65.62 shows Performance MX correctly and I can configure it. I have disabled updates.
I can't at the moment open Options software at all but will try after next restart.
Tired and want to rest my eyes. At 81 it doesn't take much.
Thanks very much for all your assistance.

OK I reinstalled the Options software and it's the same, mouse inactive.
But at least I can now configure all my hardware using 2 different pieces of software.
Thanks again. Off to bed now.

Yes, it's as you said, thanks.