I recently bought a new laptop with Windows 10 installed, and the disk of Sim City 4 doesn't work. On Simtropolis, (link) it was said that I can get a free copy of SC4 from Origin with my serial code, which I still have. How exactly do I do that?
Try running in compatibility mode: right click the Simcity 4 shortcut > Properties > Compatibility. Choose a compatibility mode, click apply. Try a different compatibility modes to see if that resolves the issue
Right-click Origin and select Run as administrator
Lastly, I cannot guarantee we can get the game working on newer versions of Windows, especially Windows 10. Please see the official requirements below:
MINIMUM SYSTEM REQUIREMENTS (SUBJECT TO CHANGE): OS: Windows XP/Me/2000/98 (NT and 95 NOT supported) CPU: Pentium III 500MHz or equivalent RAM: 128MB RAM for Windows Me/2000/98; 256MB RAM for Windows XP Video: 32MB video card with DirectX 7.0 compatible driver Hard Drive: 1GB hard drive space Sound Card: DirectX 7.0 compatible Peripherals: Keyboard, mouse