Xilinx Ise 147 Windows 10 [2021] Link
While Xilinx officially ended support for ISE Design Suite after Windows 7, many engineers and hobbyists still need it for legacy FPGAs like the Spartan-6 or Virtex-5. Fortunately, with a few critical patches, you can run ISE 14.7 smoothly on Windows 10 (64-bit). This guide covers the two working methods: the "WebPACK" installer patch and the Virtual Machine workaround.
Open File Explorer and navigate to: C:\Xilinx\14.7\ISE_DS\ISE\lib\nt64 xilinx ise 147 windows 10
Once the installation finishes, you must manually swap the problematic DLL files to prevent crashes. While Xilinx officially ended support for ISE Design