Photoshop half-loading, and 2018 version showing up as CS5

Ok so there are 2 computers I'm trying to work with. Both are Windows 10 computers. They're brand new. Super fast.

But both are having problems.

The first one was working fine until the other day it started glitching. I couldn't open my brush groups, the zoom tool was glitching and all sorts of trouble. I figured after a few computer reboots or giving it some magical space it would fix itself and go back to normal. Nope. It got worse. Now when it loads, it goes white and the only thing that shows up is an outline of the brush groups open. Just the frame, not the actual content inside, which is also showing up as white. So imagine you take a piece of computer paper and a marker and draw the border of the brushes tab. That's what shows up. I have to hit ctrl+alt+delete and open task manager to close it out. I can't close it out within the app.

The second computer will load but the owner just updated it to the 19.1.4 version and it's loading up as if it thinks it's CS5 all of the sudden. Instead of having a gray theme it's white, the zoom tool is glitching like it did on the first computer, and the actual icon of the tool shows up when I'm trying to use it. So if I want to use a different brush, normally it shows the shape of the brush on the cursor, right? Well now it's showing the icon- so if I'm using a brush, the brush icon shows instead of the brush shape. Also, the file window won't attach to photoshop and insists on being a second window. I tried going back to version 19.1.3 and nothing changed for this computer.

What surprises me is that it's happening on 2 computers- both of which are new and incredibly fast. On both of them it normally loads up perfectly within 15 seconds or so.

I have no idea what to do.