Microsoft ends support for Windows 7 and 8.1 on the Microsoft forums. Security update support for Windows 7 ends on Jan 14th 2020, while for Windows 8.1 one could reckon with updates until Jan 10th 2023, when it sounds likely that Microsoft might no longer exist by that time.
It is to be understood, that Microsoft and hardware firms will decide on what hardware and drivers are still available and what goes obsolete over time, as marketing strategies get more and more relentless all the time.
Probably our friend, =Snake=, has now landed in that respect between Scylla and Charybdis or as they say in the USA "between a rock and a hard stone". That for using the Windows platform for almost half a century
polonus