I have my PC parts being delivered by OCUK tomorrow but struggling to work out where to get Windows from, OCUK are out of stock and the reviews on the rainforest make some purchases sound like they are a gamble, given the price isn't cheap I would rather not gamble 
Before going further, I'm moving from Win 7 to Win 10, so this is all new to me
Firstly, which version should I be going for, the normal version or the pro?
After doing a spot of reading it seems like the pro version has a useful feature of delaying updates, seems like this would be useful with all the talk of systems being broken via certain updates?
Secondly, browsing the MS site, I believe the below link is where I should be downloading it from;
https://www.microsoft.com/en-gb/software-download/windows10
Although it mentions I need a license, I thought there was a 30 day period that I could use it before activating it with a key? I don't have one and unsure where to get a reliable one from.
Thanks for your advice

Before going further, I'm moving from Win 7 to Win 10, so this is all new to me

Firstly, which version should I be going for, the normal version or the pro?
After doing a spot of reading it seems like the pro version has a useful feature of delaying updates, seems like this would be useful with all the talk of systems being broken via certain updates?
Secondly, browsing the MS site, I believe the below link is where I should be downloading it from;
https://www.microsoft.com/en-gb/software-download/windows10
Although it mentions I need a license, I thought there was a 30 day period that I could use it before activating it with a key? I don't have one and unsure where to get a reliable one from.
Thanks for your advice
