Once you have downloaded the required ROM files from Archive.org, you need to tell your emulator where to find them.
Introduced with the Amiga 500+ and Amiga 600. It brought a modernized look and support for IDE hard drives and PCMCIA slots. amiga kickstart roms archive.org
If you are interested, I can also provide a guide on how to configure WinUAE for the best performance. Once you have downloaded the required ROM files from Archive
The most advanced, feature-rich Amiga emulator available for Windows systems. amiga kickstart roms archive.org
Modern emulators feature built-in databases that scan the files, calculate their cryptographic checksums (MD5 or SHA-1), and automatically identify the exact Amiga model and region the ROM belongs to.