Disk Write error on steam

I’ve been getting a disk write error every few days. I do all kinds of stuff to fix it and it just randomly disappears after a period of time of time. It won’t start, then when I verify the file integrity it messes up and gives a disk write error. It stops at 62% and shows the error. Here’s the steam error message 

The Sims™ 4
An error occurred while launching this game: Disk write error - C: Program Fles
RESUN
(x86)|Steam|steamapps|common\The Sims 4\Game\BIn\TS4_Launcher_x64.exe

The thing is I checked inside the directory where the error led to and there’s nothing titled TS4_launcher_x64.exe. There’s TS4_x64, but not launcher. It doesn’t affect any other games, and this is the only game I play that has the EA launcher in it. so I'm assuming it is something to do with the interplay between steam and EA's different launcher applications.  Do I need to download and replace TS4_launcher_x64 or something? I’m assuming this is common and there’s a definitive fix but I may be wrong for thinking that..

I highly doubt this is caused by anything gameplay related, but just in case it is, this started in the middle of me hosting a sims 4 death game with many sims dying in a variety of ways. If it's gameplay related it would certainly have to do with having an excess of tombstones on a lot, or by some exception with sim death handling, as two sims did just cease to exist without the Grim Reaper visiting or anything after dying from laughter if I remember correctly. 

I filed a report with steam about it and they just told me the basics about resetting the cache and checking the library folder, I assume it was some kind of automated response.

What I’ve tried to fix it: 
Restart computer, Repair steam library folder, set sims 4 folder off of read only, empty steam cache, deleting and reinstalling via steam(still resulted in disk error), clearing cache via EA, running steam as Administrator, disabling all antivirus software, change steam download region.

 However the only thing that seems to fix it is to just let it be. I'm moreso just curious as to what could be causing it. 

Other people experiencing similar issues were told to include their DxDiag info so I've attached it. However the diagnostic didn't say that anything was malfunctioning so looking at it may be redundant. 

Take care.