Windows Maximum Physical Memory
Version Maximum Physical Memory Windows 2000 Professional, Server 4 GB Windows 2000 Advanced 8 GB Windows 2000 Datacenter 32 GB Windows XP Starter 512 MB Windows XP Home & Professional 4 GB Windows Server 2003 Web 2 GB Windows Server 2003 Standard, Small Business/Home, Storage 4 GB Windows Server 2003 Enterprise Storage 8 GB Windows Server 2003 Enterprise 32 GB Windows Server 2003 Enterprise R2/SP1, Datacenter 64 GB Windows Server 2003 Datacenter R2 128 GB Windows Vista Starter 1 GB Windows Vista Home Basic, Home Premium, Business, Ultimate, Enterprise 4 GB Windows Server 2008 Standard, Web 4 GB Windows Server 2008 Enterprise, Datacenter 64 GB Windows 7 Ultimate 32 bit 4 GB
