This is a 64-bit version of the x86 instruction set, introduced by AMD and later adopted by Intel (as EM64T). It allows for a 64-bit address bus, which significantly increases the addressable memory space and enables improved performance in many applications, especially those optimized for 64-bit processing.
Alternatively, use (from Microsoft, not third‑party) – it restores official files without manual folder sorting. directx 90c extra files x86 x64
: Supports both 32-bit (x86) and 64-bit (x64) architectures, ensuring that older applications run on modern hardware. This is a 64-bit version of the x86