You can still find the "Freeware" installer for version 7.7 online. It is natively built for the Windows 7 era.
It offers a seamless link to the RS Components catalog, allowing you to pull price data and footprints instantly. It also generates industry-standard ODB++ and Gerber files. pcb design software free download for windows 7 64 bit
Although the free version limits you to two layers and a 100x80mm board area, its interface is legendary and there are millions of tutorials available. You can still find the "Freeware" installer for version 7