Maintenance for the week of January 19:
• PC/Mac: No maintenance – January 19
• NA megaservers for patch maintenance – January 21, 4:00AM EST (9:00 UTC) - 10:00AM EST (15:00 UTC)
• EU megaservers for patch maintenance – January 21, 9:00 UTC (4:00AM EST) - 15:00 UTC (10:00AM EST)
It looks like that PC does not have a discreet graphics card. And, as stated, the 4 GB of RAM is not good. If it did play it likely would be at a very low resolution and not look good at all.
That is a great free PC by the looks of it. Take It!
Will become better than an Xbox once you just add 4 more gigs or RAM and a GPU
Just make sure the PSU can support the GPU. It probably has a basic low end PSU. Also check for space in the case for a GPU. I believe it is a small form factor case.