What OS is this?

[TomTheBear]

Hello, I would like to know the exact OS that is in the following video =

https://www.youtube.com/watch?v=veDssUG5MfY

It looks like Linux, but I see the Windows logo...

 

[TomTheBear]

You can only see it for the first 10 seconds. The toolbar on top looks so cool :3

 

[voyagerfan99]

The part where the guy is copying files? It's just XP with a different theme.

 

[spirit]

It's Windows XP but with a custom theme.