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Jan 8, 2021
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Update win7/8/vista prereqs #22264

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Update win7/8/vista prereqs
adegeo Jan 7, 2021
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clarify reqs
adegeo Jan 8, 2021
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https fix
adegeo Jan 8, 2021
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37 changes: 16 additions & 21 deletions docs/core/install/windows.md
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Expand Up @@ -175,30 +175,21 @@ For more information about .NET Core 2.1 supported operating systems, distributi

### <a name="additional-deps"></a> Windows 7 / Vista / 8.1 / Server 2008 R2 / Server 2012 R2

Additional dependencies are required if you're installing the .NET SDK or runtime on the following Windows versions:
More dependencies are required if you're installing the .NET SDK or runtime on the following Windows versions:

- Windows 7 SP1 [ESU][esu]
- Windows Vista SP 2
- Windows 8.1
- Windows Server 2008 R2
- Windows Server 2012 R2
| Operating System | Prerequisites |
|--------------------------|----------------------------------------------------------------------------------|
| Windows 7 SP1 [ESU][esu] | - Microsoft Visual C++ 2015-2019 Redistributable [64-bit][vcc64] / [32-bit][vcc32] <br> - KB3063858 [64-bit][kb64] / [32-bit][kb32] <br> - [MicrosoftRootCertificateAuthority2011.cer](https://go.microsoft.com/fwlink/?linkid=747875&clcid=0x409) (.NET Core 2.1 only) |
| Windows Vista SP 2 | Microsoft Visual C++ 2015-2019 Redistributable [64-bit][vcc64] / [32-bit][vcc32] |
| Windows 8.1 | Microsoft Visual C++ 2015-2019 Redistributable [64-bit][vcc64] / [32-bit][vcc32] |
| Windows Server 2008 R2 | Microsoft Visual C++ 2015-2019 Redistributable [64-bit][vcc64] / [32-bit][vcc32] |
| Windows Server 2012 R2 | Microsoft Visual C++ 2015-2019 Redistributable [64-bit][vcc64] / [32-bit][vcc32] |

Install the following:
The previous requirements are also required if you receive an error related to either of the following dlls:

- [Microsoft Visual C++ 2015 Redistributable Update 3](https://www.microsoft.com/download/details.aspx?id=52685).
- [KB2533623](https://support.microsoft.com/help/2533623/microsoft-security-advisory-insecure-library-loading-could-allow-remot)

The previous requirements are also required if you come across one of the following errors:

> The program can't start because *api-ms-win-crt-runtime-l1-1-0.dll* is missing from your computer. Try reinstalling the program to fix this problem.
>
> \- or -
>
> The program can't start because *api-ms-win-cor-timezone-l1-1-0.dll* is missing from your computer. Try reinstalling the program to fix this problem.
>
> \- or -
>
> The library *hostfxr.dll* was found, but loading it from *C:\\\<path_to_app>\\hostfxr.dll* failed.
- *api-ms-win-crt-runtime-l1-1-0.dll*
- *api-ms-win-cor-timezone-l1-1-0.dll*
- *hostfxr.dll*

## Install with PowerShell automation

Expand Down Expand Up @@ -313,3 +304,7 @@ For more information about using .NET in a Docker container, see [Introduction t
- [Tutorial: Containerize a .NET Core app](../docker/build-container.md).

[esu]: /troubleshoot/windows-client/windows-7-eos-faq/windows-7-extended-security-updates-faq
[vcc64]: https://aka.ms/vs/16/release/vc_redist.x64.exe
[vcc32]: https://aka.ms/vs/16/release/vc_redist.x86.exe
[kb64]: https://www.microsoft.com/en-us/download/details.aspx?id=47442
[kb32]: https://www.microsoft.com/en-us/download/details.aspx?id=47409