Which HDD drive do I need

Hi Folks,

I've just purchased a Vortex Fusion LE gaming pc for my son and I know nothing about them, so much so I didn't even know it didn't come with a HDD drive installed. I now obviously have to purchase one.... do I need to buy a specific drive or will any drive work ? and are they all the same size or do I need to make sure it's not too big/small for the drive slot. Thanks for any help/ suggestions folks

It will have some kind of storage in there. PCS don't sell them without storage (after all, how can they install Windows and drivers to test if it works before shipping it to you, or the reseller you bought it from?)

Unless you bought this things 2nd hand off someone? Where did you buy it exactly?

If you turn it on does it load up Windows?

Assuming it does, can you download and install Speccy (free): https://www.ccleaner.com/speccy

And post a screenshot of what it says? e.g.