The game does not start

hey ive had the same problem but its telling me i need to update instead but ive updated it like 9 times and it still wont let me play

Thank you very much, your first advice really worked. But now I get a message that some program is trying to modify or delete another file. Of course, after ignoring it, the game starts...

l1noo6​  GameVersion.txt stores the current game version, and the .exe is the game's executable, as in, the file that runs Sims 4 itself.  So basically the game is trying to update the version in the text file, as it should.  This is normal and nothing to worry about.

I would suggest setting an exception for TS4_DX9_x64 in Avast, and also exceptions for TS4_x64 and TS4_Launcher_x64, or the entire Bin folder they're all in, so you don't keep running into issues like this.  If you don't know how, please see this guide:

https://crinrict.com/blog/2020/10/add-exceptions-to-anti-virus-programs.html#avast

I managed to play for 2 days, but today the same problem happened again. The previous tips didn't help, so I came to the last one.

l1noo6​  Your dxdiag shows that the C partition of your drive is very low on free space.  7 GB sometimes isn't enough for Windows to maneuver properly even when it's not running a demanding application.  Since this is a partition rather than a separate drive, you wouldn't lose any performance by moving data to D, so please do that to the extent possible.  For example, you could uninstall any programs currently on C and reinstall them to D, or move your Documents directory to D, as described here:

https://www.tenforums.com/tutorials/74952-move-location-documents-folder-windows-10-a.html

Most of the errors in your dxdiag are crashes of a component of Zoom.  I would suggest uninstalling and reinstalling it, which may clear up the issue, but I would also test with the app uninstalled.  If you don't want to do that for some reason, at least make sure Zoom is closed and nothing that belongs to it is running in the Task Manager's background processes list when you want to play.

I am still unable to play. I believe maybe it is time to ask for my money back on everything thing I have purchased for Sims 4. It remains unplayable and fool I must be to continue spending my money on something that is not working and lining the pockets of people who do not care. Have no fear they will remove this as they have any I have ever posted. I am so disappointed in this company and its staff. I have done everything they  have suggested and still I cannot log into the game. Why do I continue  when  there are other games I can play and they have people that care and appreciate those that spend money on their games not ignore and disrespect them like they are a waste of their time.  NO I am still unable to log into Sims 4. It is the same issue since it began two nights ago. I can see I am not the only one so it is not like I am an isolated issue. The forums are full of people that are having the same issue. Sadly it matters not if we post on EA or Steam they do not care. 

Finally got in. Thank you so much. 

The only problem now is none of my saves and Tray stuff is not in game. The file is there and they are in it but they do not show at the menu. Hopefully They will come back soon. Other than that game seems to be running pretty good right now

Phaewalker​  If you moved the Sims 4 folder that contains your saves, Tray files, etc., that would be why the game isn't reading the content anymore.  Move these subfolders (not the entire Sims 4 folder) back to Documents > Electronic Arts, and the content should work.

If it's already there, please confirm that the full file paths to these files match the path to the folder the game is currently reading.  (It may have changed.)  Here's how to find it:

https://sims4.crinrict.com/eng/2018/07/how-to-find-your-user-folder/

If the files are in the correct folder, please post a screenshots of the contents of the saves and Tray folders, as in, I'd like to see the file names and dates.