在继续之前，首先来看一些各种Windows对内存支持的限制：
Windows Vista、Windows Server 2003、Windows Server 2008 操作系统内存支持对比 IT168评测中心 | ||||
| 操作系统 | 内存容量 | |||
| Windows Server 2003 Web Edition | 2GB | |||
| Windows Vista Starter Windows Vista Home Basic Windows Vista Home Premium Windows Vista Business Windows Vista Enterprise Windows Vista Ultimate Windows Server 2003 Standard Edition Windows Server 2003 R2 Standard Edition Windows Server 2003 Standard Edition SP1 Windows Small Business Server 2003 Windows Home Server Windows Storage Server 2003 | 4GB | |||
| Windows Storage Server 2003 Enterprise Edition Windows Vista Home Basic x64 | 8GB | |||
| Windows Vista Home Premium x64 Windows Server 2003 Standard Edition x64 | 16GB | |||
| Windows Server 2003 Enterprise Edition Windows Server 2003 R2 Standard Edition x64 Windows Server 2003 Standard Edition SP1 x64 Windows Compute Cluster Server 2003 x64 Windows Web Server 2008 x64 Windows Server 2008 Standard x64 | 32GB | |||
| Windows Server 2003 Enterprise Edition SP2 Windows Server 2003 Enterprise Edition x64 Windows Server 2008 Enterprise Windows Server 2008 Datacenter | 64GB | |||
| Windows Server 2003 Datacenter Edition Windows Vista Business x64 Windows Vista Enterprise x64 Windows Vista Ultimate x64 | 128GB | |||
| Windows Server 2003 Datacenter Edition x64 | 512GB | |||
| Windows Server 2003 R2 Enterprise Edition x64 Windows Server 2003 Enterprise Edition SP1 x64 Windows Server 2003 R2 Datacenter Edition x64 Windows Server 2003 Datacenter Edition SP1 x64 | 1TB | |||
| Windows Server 2003 Enterprise Edition SP2 x64 Windows Server 2003 Datacenter Edition SP2 x64 Windows Server 2008 Enterprise x64 Windows Server 2008 Datacenter x64 Windows Server 2008 IA64 | 2TB | |||
特别说明的是，Windows 7将会支持最多192GB的内存（64位版本），服务器版本不会叫做Windows 7 Server，而是叫做Windows Server 2008 R2。
