I cannot finish installing the Sims 4.

@friendlypete I'm going to assume your new pc (meaning not mac) has Windows 10 as the operating system. Actually is wasn't EA that changed, it was Windows 10. Windows 10 does not support SecuROM and SafeDisc which was the DRM used in TS3. The sims franchise is constantly expanding and evolving which is different from other games on the market. The game now HAS to be registered to Origin. Then the game will update to version 1.69 which will remove SecuROM and SafeDisc. Windows 10 will no longer read the data that Safedisc is expecting (data that was created by over writing the disc). SecuROM had an install limit and was considered a rootkit that could leave the computer vulnerable to attack. SafeDisc used a method of overwriting the optical disc that most optical drives could read but not write thereby the disc could not be reliably reproduced. As time progressed some optical drive manufacturers ceased to support over writing and this led to some drives would not read the data. Now Origin operates like Valve's Steam - you must create an online account and the account controls your games. As anti piracy evolves I feel the next step will be pay to play (like cable TV) with a monthly subscription (I have posted about this before). This is based on the fact that you don't OWN the software but what you pay for is a license to use the software. This has been in effect for some time (example Windows operating system activation) and is not new a new concept. In recent years the licensing of software  has been brought to the foreground by the gaming industry.

hth