talktome

G2a is absolutely safe to buy games from. If you get a fake key (which is very rare) then you can get your money back very easily as g2a has a very good customer support and refund policy. So there is hardly any risk buying games from g2a. I myself have bought numerous games from g2a and never ever got a single fake key from there. So i will say go for it and save some bucks.

Your welcome. You can trust g2a. it is safe.

Buying Windows is not advisable. It isn't worth the full price. 
 
He only earns when someone buys a product with his link. learn2read. 

I only recommend g2a to buy games. I don't recommend windows keys from g2a.

Welcome to the forum talktome.
 
Yes g2a is a very good and trustworthy site, I have bought many games from it and will recommend to all people who want to buy any game to look at g2a also. This site even has great deals on games which are new.
You can buy from it without any risk.

Metro Redux Bundle
 
https://www.g2a.com/r/metro-redux-steam-global
 
 
 Bioshock triple bundle (All three bioshock games)
 
https://www.g2a.com/r/bioshock-triple-bundle-steam