The Sims 3 Patch 1.70 Download ^new^ Guide

http://akamai.cdn.ea.com/eadownloads/u/f/sims/sims3/patches/TS3_1_70_Install_Update.exe

A: No. Saves are stored in your Documents folder. However, it is wise to back them up before any major patch. The Sims 3 Patch 1.70 Download

A: Yes, but it requires a full uninstall and reinstall using disc-based installers, then blocking the EA App via firewall rules. http://akamai