Hi jmarmstrong ,

Great to hear that you're setting up your Sage 50 on a new computer. If it's the 2013 edition you have, you can certainly reinstall it as long as you have the original disc and key code.

Here's how you can proceed:

1. If you need to uninstall a previous installation on your new computer, you can follow these steps:

   • Right-click on the Windows Start menu and go to Apps and Features.
   • Find Sage 50 and click Uninstall, then follow the wizard.

2. To reinstall:

   • Go to the C:\Sage folder and find your Sage 50 Accounting Installer file. 
   • Run 'launch.exe' and follow the installation wizard.

3. After installing, open any company file and perform a product update via Help > Check for Product Updates.

For the serial number and activation key:

• Visit the Sage Customer Portal to retrieve your details.
• For activation, you can chat with support if you encounter any issues.

If you're looking to upgrade from Sage 50 2013 to the latest version, it's advised to contact Sage Expert Services since this may require a fee-based service for data migration.

Hope this helps! If you have any further questions, don’t hesitate to reach out. If this helps please mark it as verified :)

Warm Regards,
Erzsi