.NET Framework System Requirements
The tables in this topic provide the hardware, operating system, and software requirements for the .NET Framework 4.5. Development environments that enable you to develop applications for the .NET Framework have a separate set of requirements.
Note
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For download information and links, see Installing the .NET Framework 4.5. |
The following table lists the operating systems supported by the .NET Framework 4.5. √ indicates that the .NET Framework 4.5 is supported by a specified operating system; — indicates that it is not supported.
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Operating system |
Version 4.5 |
|---|---|
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Windows 8 (32-bit and 64-bit editions) |
√ (see notes) |
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Windows 7 (32-bit and 64-bit editions) |
√ |
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Windows Vista SP2 (32-bit and 64-bit editions) |
√ |
Notes:
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Windows 8 includes the .NET Framework 4.5, so you don't have to install it separately.
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The .NET Framework 4.5 is supported on the Windows Preinstallation Environment (Windows PE). Not all features are supported on Windows PE.
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For all platforms, we recommend that you upgrade to the latest Windows Service Pack and critical updates available from the Windows Update website to ensure the best compatibility and security.
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On 64-bit operating systems, the .NET Framework supports both WOW64 (32-bit processing on a 64-bit machine) and native 64-bit processing.
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Operating system |
Version 4.5 |
|---|---|
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Windows Server 2012 (64-bit edition) |
√ (see notes) |
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Windows Server 2008 R2 (64-bit edition) |
√ (see notes)
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Windows Server 2008 SP2 (32-bit and 64-bit editions) |
√ (see notes)
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Notes:
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Windows Server 2012 includes the .NET Framework 4.5, so you don't have to install it separately.
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For all platforms, we recommend that you upgrade to the latest Windows Service Pack and critical updates available from the Windows Update website to ensure the best compatibility and security. Installation of the latest Windows Service Pack may be required on some operating systems.
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On 64-bit operating systems, the .NET Framework supports both WOW64 (32-bit processing on a 64-bit machine) and native 64-bit processing.
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On Windows Server 2008 R2, the .NET Framework 4.5 is supported in the Server Core Role with SP1 or later. The .NET Framework 4.5 is not supported on Windows Server 2008 R2 for Itanium-Based Systems.
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On Windows Server 2008 SP2, the .NET Framework 4.5 is not supported in the Server Core Role.
