Should I Dual Boot windows 8.1 & windows 7? - 1

I have lenovo G570 with original windows 7 home basics with i3 processor,3gb ram and a 500gb hard disk. I don't want to delete windows 7 but wants to install windows 8.1(pirated).so i'm thinking to install windows 8.1 too on a hard drive. I just wanna ask that will windows 8.1 work perfect with windows 7 home basic on my laptop and should i install 2 windows on my laptop.
Actually i'm fed of windows 7 home basic because of its permanent task bar color and i don't want to make any change in windows files or i don't want to remove windows 7 home basic because it is an original edition of windows.Actually i have windows 8.1 on my another PC with a p4 processor & because of its low configuration windows 8.1 runs slow on that PC. I also like windows 8.1 than windows 7. I Think windows 8.1 is different. Its start up is also very fast.it runs twice the speed of windows 7 and windows 8.1 have more features. I want to install windows 8.1 but don't want to delete windows 7.

Do NOT try to use a pirated copy on dual boot. Pirated copies of 8.1 do NOT activate and will eventually lock the machine. At that stage you would need to remove it by deleting its install which would then remove the boot option for Windows 7, making the machine totally unusable.

Windows 8.1 doesn't work perfect at all, it's pants, wouldn't bother.

My Brother printer is also shows offline. I tried a lot to fix that however I was not able to fix that. I got this link http://www.printer-techsupport.com/brother-printer-support.html over the internet. I just visited and made a call on their toll free and got instant help for my Brother printer.

That's really a personal choice, make sure they are on separate HD's.