Hey guys, here's a quick tutorial on how to load only the base game without uninstalling your expansions

Step 1 - In Origin, right click The Sims 4 and go to "Game Properties" Step 2 - Select "Advanced Launch Options" Step 3 - Under "Command line arguments" paste the following: -disablepacks:EP01,EP02,EP03,EP04,EP05,EP06,EP07,EP08,EP09,EP10,GP01,GP02,GP03,GP04,GP05,GP06,GP07,GP08,GP09,SP01,SP02,SP03,SP04,SP05,SP06,SP07,SP08,SP09,SP10,SP11,SP12,SP13,SP14,SP15,SP16,SP17

If you would like to disable only specific packs, you can use this website to do so https://jamesturner.yt/disablepacks Credit to James Turner for sharing this!

-- Edit by snowy: the tool linked here also lets you disable all the packs and kits that came out after this guide was posted.