Sims 4 wont start any more after Windows update

MeganKAllen  Did you try the clean user folder, as described?  This is separate from uninstalling and reinstalling, which only affects the game's program files.

Part of the reason I ask is that your dxdiag doesn't list any Sims 4-related errors, which means I don't have any info about what's happening when you see a white screen.

Please also try updating your laptop's graphics driver, which is from 2021.  This is the newest driver available from Intel:

https://www.intel.com/content/www/us/en/products/sku/208652/intel-core-i31115g4-processor-6m-cache-up-to-4-10-ghz/downloads.html

Run the installer as an admin: right-click the download and select "Run as administrator."  Restart afterwards and before trying to play.

HP doesn't always allow drivers from outside (non-HP) sources, so don't worry if you get an error when trying to install the driver.  In that case, please look for a new driver from HP.  Go here:

https://support.hp.com/us-en/drivers/laptops

Enter your laptop's serial number, choose your OS (just Windows 11 is fine) if prompted, click All Drivers, expand Driver-Graphics, and look for a newer Intel driver than your current one, which has a version number of 30.00.0101.1191.  Anything that starts with 31 or 32 would be newer, as would one that starts with 30 and ends with something higher than 1191.  If you find one, install it as described above.

If this doesn't help either, please look for new errors in the Reliability Monitor.  Hit 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 you most recently tried to open Sims 4.  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.