Windows 7 processor and video card problem?

My windows 7 media play won't play UHD videos.

At first I thought I found out the reason, and that is Windows 7 does not support UHD videos. I was looking to find a program to solve this.

Today I heard something different from my computer repair shop. I was told the problem was with my computer: the processor and the video card. I was told the processor is not capable of working on such big files. As with the video card problem, I did not recall what I was told - it was something I did not understand at the time.

I was told nothing can be done; no upgrades can be done. The only way to solve is to buy a Window 10.

I tried to play those videos with my Photoshop CS6. They did play but very choppy and was like slow motion. I wasn't even sure if some of the movements had been missing.

I will not opt to convert the videos to a lower resolution so I can play it. I especially need UHD resolution to view detailed colors of the videos so I can selectively make still images.

I do not know if there is anything at all that will help in order to avoid purchase two new computers. My Windows 7's work just fine if not for this problem.

Please provide lots more details. There is much too much which can affect things in this general subject area and you've provided nothing.

(1) What is your computer, brand/model and motherboard and CPU and memory?

(2) What is your graphics card, brand/model?

(3) What is your monitor, and what type of cable connection do you have between graphics card and monitor... HDMI or DVI or DisplayPort? If you have a 2-ended cable (with different connectors at each end), what type? Or do you have an "adapter" connected to the graphics card with one male connector and a different "female" connector at the other end plus a male-to-male cable going from the adapter to the monitor?

(4) How are you providing UHD/4K source that you are trying to play? Streaming? Downloaded file from somewhere? BluRay or UHD/4K player, either internal in your PC or externally connected to the PC (and if so, how)? What brand/model BluRay or UHD/4K player?

(5) What software are you trying to "play" this UHD/4K content with? You mentioned Adobe CS6... are you talking about Adobe Premiere Pro CS6, or something else?

Have you tried Linux? You can boot with a Linux Live DVD, to see if it will work in Linux. If it does, then you can install VMWare Workstation Player, and then install Linux Mint in a virtual machine, then run it that way, without ever leaving Windows 7, whenever you want to watch one of these videos.

Or, perhaps you could install Windows 10 in a virtual machine and watch it from there.