[fChk]

Not agreed that windows 7 has no support any more..

Agreeing with A FACT or not doesn't make it disappear!!.. Win7 IS DEAD M$'s support-wise!..

.. still using in commercial and residential both platforms.
(..............)
HP,DELL, all still providing system updates and driver list for windows 7.

When M$ stopped supporting Win7 when it reached its EOL date that just meant that Win7 will live on in the state it has reached on that date. Nothing will be added to it from M$'s side.

This also means that developers who still care about it can still make application for it and hardware vendors can still make drivers for it -BUT THAT DOESN'T HAVE ANYTHING TO DO WITH M$ per se- In both cases, that residual support will be decreasing with time as the Win7 technology will get far too outdated even for the more Win7-fanatics out there. It's sad but that's how M$$ wanted it to be.

It was M$'s call.

even windows 7 has some unique old devices driver setups which absolute in 8, 8.1 and 10. if the machine has 2GB to 4GB of RAM then windows 7 professional is one of best and light weight option.

On this part we AGREE. There was a shift(/a rupture) when transitioning from Win 6.1 to Win6.2 and beyond, that put to rest a whole series of legacy hardware.

It started with Windows 8.1 that needed for its 64bit version 3 newer CPU instruction sets, 2 of which didn't exist on a Pentium processor (LAHF-SAHF, PREFETCHW). What that meant from a Windows codebase perspective was a large cleanup hardware-support-wise.