ISE 14.7 has a notorious "Achilles heel": it is the last version to support Windows 7 (32/64-bit). It does not natively support Windows 8, Windows 10, or Windows 11.
Downloading Xilinx ISE 14.7 is a necessary skill for hardware engineers maintaining legacy systems. Use only the official AMD archive, embrace virtualization for Windows, and never trust a random "ISE 14.7 setup.exe" from a forum link. xilinx ise 14.7 download
You should never download the ISE installer from third-party torrent sites or random file lockers. Not only is this a security risk, but those versions are often corrupted or missing critical service packs. ISE 14
The good news: ISE 14.7 offers a free WebPACK license for many Spartan-6 devices. For larger Virtex-6 parts, you will need a paid license file (which AMD still supports generating for existing customers via the licensing portal). Use only the official AMD archive, embrace virtualization