I notice you're asking about downloading — but that’s actually an old version (the final patch for original Skyrim, before Special Edition).
The 1.9.32.0.8 patch makes the game by default, meaning it can access up to 4GB of RAM. To verify: Skyrim Latest Patch Version 1.9.32.0.8 Download
If your game is version 1.0 or 1.1, simply uninstall and reinstall Skyrim via Steam. The clean install will directly patch to 1.9.32.0.8. I notice you're asking about downloading — but
