@igazor - I'm trying to follow the instructions that you sent me to for the new Windows 10 update and my Game Mode seems to already be off by default. I had to actually go into game to check as the instructions said that Option One wouldn't work for the current update that I have which is 1709.
I'm having trouble with this part: 3: Make sure to tick the "Disable fullscreen optimizations" option in the Compatibility Tab of the game's exe, click Apply, then OK.
I'm not sure which one to check for the above: Is it the TS3W Application? My game path is: Program Files (x86) > Electronic Arts > The Sims 3 > Game > Bin. Is that right?