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 X64
Windows 10 Enterprise4 GB2TB
Windows 10 Education4 GB2TB
Windows 10 Pro4 GB2TB
Windows 10 Home4 GB128GB
Physical Memory Limits: Windows 7The following table specifies the limits on physical memory for Windows 7.
VersionLimit on X86Limit on X64
Windows 7 Ultimate4 GB192 GB
Windows 7 Enterprise4 GB192 GB
Windows 7 Professional4 GB192 GB
Windows 7 Home Premium4 GB16 GB
Windows 7 Home Basic4 GB8 GB
Windows 7 Starter2 GBN/A
Physical Memory Limits: Windows Server 2012The following table specifies the limits on physical memory for Windows Server 2012. Windows Server 2012 is available only in X64 editions.
VersionLimit on X64
Windows Server 2012 Datacenter4 TB
Windows Server 2012 Standard4 TB
Windows Server 2012 Essentials64 GB
Windows Server 2012 Foundation32 GB
Windows Storage Server 2012 Workgroup32 GB
Windows Storage Server 2012 Standard4 TB
Hyper-V Server 20124 TB
Physical Memory Limits: Windows Server 2008 R2The 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 IA64
Windows Server 2008 R2 Datacenter2 TB
Windows Server 2008 R2 Enterprise2 TB
Windows Server 2008 R2 for Itanium-Based Systems
2 TB
Windows Server 2008 R2 Foundation8 GB
Windows Server 2008 R2 Standard32 GB
Windows HPC Server 2008 R2128 GB
Windows Web Server 2008 R232 GB
原文地址：https://msdn.microsoft.com/en-us/library/windows/desktop/aa366778(v=vs.85).aspx
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