The Mainboard is from Asus.
It has 8 GB RAM.
The system is located on a fast SSD drive, that was something very new to me, then.
The only wish they didn't implement was to install Win7 32 bit on that, too.
You see, it might be far too old right now.
Although, what I play, plays fairly good, with only a few exceptions (graphics intensive things).
You have Windows 7 32-bit and 8 GB of RAM? That's half your memory wasted because you can't really access past 4 GB. I suggest you don't go back to this computer shop.
Otherwise, it may not be that old. I see it's still possible to buy i7 CPUs with the socket of your motherboard (LGA 1151), like the i7-7700 K. You can install an NVMe module since you have an M2 slot, or maybe you already have one, if that's what you mean by fast SSD. And it's possible to upgrade the GPU. So you could keep the motherboard, the case, the disk drives, the power unit if it's enough for the new components, the RAM if it doesn't slow down the new CPU if you replace that (you may need to check that the motherboard doesn't slow down the new CPU either).
But the first thing to do would be to install Windows 10 64-bit (I would avoid Windows 11).
Again, it depends what you want to do with it. Replacing too many items could be more costly than buying a new one.