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Memory limits on Windows versions

From time to time I get questions about memory limits, and since I have a limit amount of memory myself I might forget, so here are a link to a site with the answers
Short summary:

Version     Limit in 64-bit Windows
Windows 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
Windows 7 Pro/Ent/ultimate (x64)                                    192 Gb
Windows 7 Home Pro (x64)                                              16 GB
Windows 7 All Version (x86)                                            4 GB

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