Win10，Win7,WinServer2012,WinServer2008内存最大支持
关于64位Windows7的信息已经很全面了，但是关于win8和win10最大支持多少内存信息很少且可靠性较低，假设不考虑主板等方面的限制，单纯考虑操作系统对内存容量的支持。Physical Memory Limits: Windows 10
The following table specifies the limits on physical memory for Windows 10.
VersionLimit on X86Limit on X64Windows 10 Enterprise 4 GB
2TB
Windows 10 Education 4 GB
2TB
Windows 10 Pro 4 GB
2TB
Windows 10 Home 4 GB
128GB
Physical Memory Limits: Windows 7
The following table specifies the limits on physical memory for Windows 7.
VersionLimit on X86Limit on X64Windows 7 Ultimate 4 GB
192 GB
Windows 7 Enterprise 4 GB
192 GB
Windows 7 Professional 4 GB
192 GB
Windows 7 Home Premium 4 GB
16 GB
Windows 7 Home Basic 4 GB
8 GB
Windows 7 Starter 2 GB
N/A
Physical Memory Limits: Windows Server 2012
The following table specifies the limits on physical memory for Windows Server 2012. Windows Server 2012 is available only in X64 editions.
VersionLimit on X64Windows Server 2012 Datacenter 4 TB
Windows Server 2012 Standard 4 TB
Windows Server 2012 Essentials 64 GB
Windows Server 2012 Foundation 32 GB
Windows Storage Server 2012 Workgroup 32 GB
Windows Storage Server 2012 Standard 4 TB
Hyper-V Server 2012 4 TB
Physical Memory Limits: Windows Server 2008 R2
The following table specifies the limits on physical memory for Windows Server 2008 R2. Windows Server 2008 R2 is available only in 64-bit editions.
VersionLimit on X64Limit on IA64Windows Server 2008 R2 Datacenter 2 TB
Windows Server 2008 R2 Enterprise 2 TB
Windows Server 2008 R2 for Itanium-Based Systems 2 TB
Windows Server 2008 R2 Foundation 8 GB
Windows Server 2008 R2 Standard 32 GB
Windows HPC Server 2008 R2 128 GB
Windows Web Server 2008 R2 32 GB
原文地址：https://msdn.microsoft.com/en-us/library/windows/desktop/aa366778(v=vs.85).aspx
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