Update

2015-03-26: This issue should now be solved. Close your Origin client and reopen to be prompted for a new update. This should solve the problem.

Problem

My game does not start anymore and I only see a small window. The game does not react at all.

Cause

This issue is caused by Origin in game. It occurs since Origin Update 9.5.10.

Solution

Deactivate Origin in game. If  this doesn’t work, try restarting Origin afterwards and make sure ts4.exe is not running in the background.

How can you help

To help EA fix this issue, please do an Origin Error Report and post your Origin Report ID in this thread: INFO REQUEST] Sims 4 starting in small window/Not starting

Further Reading

• Can’t run with the Video Card in this System (this error is also caused by Origin in game)