game crashing after 40-50 mins of gameplay

@wyddmai  Did you remove any information from the first part of the dxdiag?  If so, please provide an intact dxdiag—some of that info is highly relevant here.  I don't need the machine name or ID, but the processor and total and available memory readings matter a lot.  The system model matters as well if you're thinking of upgrading the memory—not all laptops would support an upgrade.

That's especially true because it sounds like Sims 4 is running out of memory.  Your computer's page file is almost all used; that's where overflow data apps are currently using goes when it can't be accommodated in physical memory (RAM).  Normally, Windows would increase the page file size accordingly.  But the C drive has so little space, Windows can't really budget more than it already has.

The only thing you can really do here, at least in the moment, is free as much space on C as possible and run nothing else while you're playing Sims 4.  (Restart your computer immediately beforehand for best results.)  That goes for the EA App too: try disabling its in-game overlay and putting it in offline mode before launching the game.  Actual gameplay should be unaffected other than a lack of access to the Gallery.

If that's not enough, please open the Task Manager's Startup tab and post a screenshot of what you see there.  It's possible disabling some apps at startup could help, depending on what has set itself to start with Windows.

TS4 and EA are on my D drive which has quite a lot of GB and so are my documents/mods folders. I don't use my C at all for anything that can be moved from it, and it has some space to spare, can I fix that, possibly? How do I put the EA app in offline mode?

Here's the new DxDiag

@wyddmai  Your C drive currently has 7.3 GB available out of 58.8 GB total space.  Windows accounts for less than half of that, so the question is what else is taking up so much space.  Please start with Documents: open a File Explorer window, right-click the folder and select Properties > General, then you'll see the total size; please list it for me.

If Documents is small, say only a few GB or less, repeat with every folder you can see on C.  In a File Explorer window, click This PC in the left panel, then double-click C, and list the size of each folder there.

The total size won't add up properly because Windows hides some files and folders, but other than the page file, the size of which we already know, nothing hidden should be large enough to be a problem.

My documents folder is on my D drive but it is 17.8 GB

My program files folder is 1.34 GB

My program files x86 folder is 1.47 GB

My windows folder is 21.6 GB

My users folder is 14.9 GB

@wyddmai  Alright, Users is probably the culprit here.  Open it and double-check the size of the folder with your username, then open that and find the sizes of the subfolders.  Let me know which ones are larger than 2 GB.

That folder is 14.7 GB 

I have an apple folder inside of that, that is 6GB, I deleted anything apple/itunes related after I fixed an issue with my phone using the iTunes app, no clue why it's still there.

App data is hidden but it is 8.65 GB

Everything else is a few MB or nothing at all

so, I've been trying this out and so far, the game has been fine with just base game. It's only when I add my mods folder back is when it crashes.

@wyddmai  Then the problem is your Mods folder, or rather something inside it, and you'll need to test the content.  If you have a lot of files to sort through, use the 50/50 method:

https://modthesims.info/wiki.php?title=Game_Help:Finding_Problem_Custom_Content#The_50.25_Method