Lenovo G50 windows 8.1 not activated?

Lenovo G50 windows 8.1 not activated?

Added (1). edededed

Added (2). I bought a new lenovo g50 laptop at
http://www.amazon.com/...00SB4AEAS/

Then I opened my computer-->properties and was shocked to see that the windows 8.1 is not activated.
What am I supposed to do to activate the windows genuinely without spending any money?

Which laptop is better and why? - 1

http://www.bestbuy.ca/en-CA/product/acer-acer-aspire-v17-nitro-17-3-gaming-laptop-black-intel-core-i7-4710hq-1tb-hdd8gb-ssd-16gb-ram-vn7-791g-77hr/10323636.aspx?cmp=pla-laptops__ultrabooks

or

http://www.bestbuy.com/site/lenovo-17-3-touch-screen-laptop-intel-core-i7-16gb-memory-1tb-8gb-hybrid-hard-drive-black/2626011.p?id=1219550862649&skuId=2626011

Computer opinion. I want to buy new

I'm 14yrs and got outstanding mark. My dad asked me about reward. I selected to buy a macbook pro please give your opnion. Should i buy macbook or Mac mini or any other laptop (these include lenovo, VAIO or hp). Please give reasons also. I'm personally intrested in Mac book because. I have my house full of apple products (iPhone, Ipad, Apple tv)

Why do I have to reboot my computer in order for my printer to be detected?

When using Microsoft Office Word 2013, the option for selecting a printer is replaced with "No Printers Installed," and then is solved after rebooting my PC, as soon as I'm done printing once rebooted, a couple hours pass and the printer will not be detected on the computer without a reboot of the computer.

Using Windows 7 on a Lenovo G580 laptop, and printer is a Canon MP250 series.

Any help is appreciated and thank you in advance.

Laptop keeps randomly switching off?

It's a brand new laptop I literally only got it for Christmas, It's a lenovo flex, touchscreen thing and I've just been sitting there typing away and it just randomly switches off on it's own? No warning, just the fans stop going screen goes black and I'll turn it back on, working fine then it'll switch off again at another random point?

100% disk space being used all the time?

When ever I try to use my laptop it is constantly running with 100% disk space being used by svchost.exe Service Host: Local Service (Network Restricted) and ntoskrnl.exe System. These two processes are taking up all the disk space and i don't know what to do about it. I got a program called process explorer when I was looking for ways to fix it, and whenever I turn that program on the disk space goes right down, but when I turn it off it goes back up again, so I've just been leaving it on, but I still want to know what the heck is wrong with my laptop. I'm running windows 8.1 on a lenovo with core i3 processor and intel hd graphics and 4 gb of ram.