@anam06 That's the info I was looking for, thanks. Unfortunately, this particular error seems to be especially stubborn—I haven't seen anyone report that it's been fixed. I can make some suggestions though. The first thing to do is to try completely disabling any antivirus program you run. If you're not sure what you have installed, check the Task Manager's background processes list.
If that doesn't help, try doing a clean uninstall and reinstall of Origin:
- Quit Origin, then right-click on the Task Bar and open the Task Manager. Scroll through looking for Origin entries. If you find any, click on them and End Task.
- Clear Origin's cache.
- Download Revo Uninstaller (the free version is fine) from here.
- Launch Revo, select Origin from the list, and click Uninstall.
- When it finishes uninstalling, select "Moderate" under "scanning modes," and click Scan.
- If Revo finds any remaining registry entries, select all, delete, and click Next.
- Revo will display "Remaining Data and Folders." Select all of them except for the "Origin Games" folder, if it appears. (This is where Sims 4 and other Origin games are installed by default.) Delete the rest.
- Close Revo, and restart your computer.
Next, download the full Origin installer and run it. Here's the direct download link:
http://download.dm.origin.com/origin/live/OriginSetup.exe
Be sure to run both the installer and Origin itself as an admin: right-click on each and select "Run as Administrator."
If that doesn't help either, try playing in a new admin user account on your computer. Don't import any settings or data from your current user account. You can sign into your usual Origin account and launch the game from there; your saves won't be available, but you won't need to reinstall anything.