Are you saying that Win 10 will be offered up until July 2016 free?
Yes. Microsoft rolled out the free Windows 10 upgrade at the end of July this year and it will be in effect until the end of July 2016. After that one will have to purchase Windows 10 just like previous versions of Windows if you want it.
As if it's not abundantly clear already, Microsoft really wants as many people on Windows 10 as they can get as quickly as they can get them there. It is a real PITA to be officially maintaining four versions of an OS at the same time.
See the Windows lifecycle fact sheet for specific information about when each version will have official extended support dropped.
The reason i don't want to install just yet is because i run chess engine software on the Acer,cranking out analysis for my chess games i play(I'm an international master) and this software is itself outdated and i intend on upgrading.I want to do this though on a brand new PC(not a laptop) next year.I'm afraid if i install Win 10 on the laptop,i will have to re-install this outdated chess software and it may not work because like MS, chess software is upgraded constantly and those behind it make it so that it functionality is compromised and not supported after a few years.This is reason i hestitate to install Win 10.
There is quite a bit of old software that runs just fine under Windows 10, but the only way to know is to try it. Were I you, I'd find a friend who has installed Windows 10 and try installing and using your chess software on his or her computer, just as a "proof of concept." You'll know very quickly whether you'll be able to use it or not, and can plan accordingly.
I have Lenovo PC still running on Win XP.believe it or not running MS Essentials as my A/V and i run Malware Bytes Anti-Exploit(free version) every day and it works like a charm.XP is such a smmoth OS
Lots of people still have machines with Windows XP, myself included. That being said, I wouldn't use an XP machine for anything of importance at this point in time. It's been out of support for a long time now and the vulnerabilities just keep getting greater.
and i know alot of gov't and business and banks are still running it because it is so good.
Er, no. Most of them are still running it because they've not wanted (or been able to, in the case of governments where tax funds have kept getting tighter and tighter) to dedicate the time and resources necessary to make timely updates. I worked for very large companies in the past in IT and was an end user while working for a number of government entities and I can say, with some certainty, that they remained on antique systems of all sorts not "because [they were] so good" but because it was simply easier to "do what's always been done." The upgrades tend to come about as the result of an actual crisis, in most cases, or a very clearly impending crisis in others. Large bureaucracies tend to be slow to correct anything, and they also tend to distrust technological changes. I have yet to see any large bureaucracy (even in the companies that are producing "the latest technology" themselves) be early adopters of anything, and by early adoption I'm not talking about adoption when the technology is still "bleeding edge" by anyone's assessment. A more consistently reactive technology upgrade "model" doesn't exist.