Absolutely CANNOT Get the Sims 3 to launch from the launcher no matter what I do

alyssastanton12​  Have you installed NRaas ErrorTrap or another core mod?  What you've described happens sometimes when a core mod is present that's not build for this exact version of the game.  There are very few core mods out there, seven common ones last I heard, but if you're not sure, you could simply remove your entire Mods folder as a test.

If that's not the issue, please provide a dxdiag.  Click Windows key-R, enter dxdiag in the run box, wait for the scan to finish, click "Save all information," and save the file to your desktop.  From there, you can attach it to a reply using the paper clip (Attachment) icon included with the other formatting buttons.

I think my mods folder was removed at the time of this post, but here's that dxdiag

alyssastanton12​  Your dxdiag doesn't list any Sims 3-related errors.  That could be because newer errors have crowded those out, or because the game is being blocked from starting, as an antivirus could do.

If you haven't tried to play in a while, the former is a distinct possibility.  So in that case, please try to launch the game, then look for new errors in the Reliability Monitor.  Click Windows key-R and enter "perfmon /rel" without quotes, and you'll see a chart of errors and updates with a column for each day.  Today is on the right.

Look for an error that happened at exactly the time of your most recent attempt to open Sims 3.  If you find one, double-click it to see more details, then copy that info and paste it into a reply here.  If you don't see a new error, check back in an hour or so—the Reliability Monitor doesn't always update right away.

No error means the game is likely being blocked, so in that case, check your antivirus for any recent actions involving Sims 3, and set exceptions/exclusions as necessary.

If you don't see an error and you can't find any evidence your antivirus is interfering, please create a new admin Windows account and try playing there.  Make it local, as in, don't link it to your Microsoft account or any email address.  You'll be able to (try to) play without reinstalling anything.

I think this is what you're referring to, it is now showing up as an error like you said.

Description
Faulting Application Path:    C:\Program Files (x86)\Steam\steamapps\common\The Sims 3\Game\Bin\TS3W.exe

Problem signature
Problem Event Name:    APPCRASH
Application Name:    TS3W.exe
Application Version:    0.0.0.32
Application Timestamp:    52dec247
Fault Module Name:    TS3W.exe
Fault Module Version:    0.0.0.32
Fault Module Timestamp:    52dec247
Exception Code:    c0000094
Exception Offset:    00213702
OS Version:    10.0.26200.2.0.0.768.101
Locale ID:    1033
Additional Information 1:    a89c
Additional Information 2:    a89cbad0343d4637e5843732a061706b
Additional Information 3:    126f
Additional Information 4:    126f28e330719636fb8f3f307d7d707e

Extra information about the problem
Bucket ID:    cc236a4c51da69e4fde333e1694a5eee (2153622090040368878)

alyssastanton12​  Right, that's the Alder Lake issue, which is fixed for EA App installs but not for Steam (or disc) installs.  Please use one of the methods described in the accepted solution of this thread:

Sims 3 won't open: Alder Lake (Intel 12th-gen) CPU | EA Forums - 8265525

The patch is a one-time intervention, if you'd prefer the easiest solution, but it doesn't work for everyone.  I suspect that the issue is often antivirus-related, but I can't prove it.  At any rate, apply the workaround of your choice to TS3W.exe, with the W, since you have a Steam install.