| Feature | 32-bit Compatible Version | 64-bit Exclusive Version | |--------|--------------------------|--------------------------| | Install path | C:\Program Files (x86)\Apple\ | C:\Program Files\Apple\ | | Update detection | Mixed architecture | Native x64 services only | | Memory usage (idle) | ~14 MB | ~9 MB | | iTunes sync stability | Occasional crashes on large libraries | Stable for >50k tracks | | Download source | appldnld.apple.com | swcdn.apple.com (exclusive CDN path) |

The Apple Software Update tool is necessary for Windows 10 64-bit users who: