How to determine which versions and service pack levels of the Microsoft .NET Framework are installed

Applies to: Microsoft .NET Framework 3.5 Service Pack 1

Summary


This article describes how to determine which version(s) and service pack level(s) of the Microsoft .NET Framework are installed.

The Microsoft OneScript team has released a script to run in PowerShell that can report the Microsoft .NET Framework versions are installed on your Windows. For more information about this script, see How to determine versions & service pack levels of .NET Framework by PowerShell in TechNet Gallery.

More Information


Use the registry information below to determine which version(s) and service pack level(s) of the Microsoft .NET Framework are installed.

To do this, following the steps below:
  1. Click Start, type regedit in the Search programs and files box (click Run and type regedit in the Run Dialogbox in Windows XP), and then press Enter.
  2. In the Registry Editor, locate the Registry Key Name in the table below and check the value for the related .NET Framework.
    In the Registry Editor, locate the Registry Key Name in the table below and check the value for the related .NET Framework.

     
    .NET Framework Service Pack Level Registry Key Name Value
    4.6.2 Original Release
    • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Client
    • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full
    Name: Release,
    Type: REG_DWORD,
    Data:
    • On Windows 10 Anniversary Update: 394802
    • On all other OS versions: 394806
    4.6.1 Original Release
    • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Client
    • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full
    Name: Release,
    Type: REG_DWORD,
    Data:
    • On Windows 10 November Update systems: 394254
    • On all other OS versions: 394271
    4.6 Original Release
    • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Client
    • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full
    Name: Release,
    Type: REG_DWORD,
    Data:
    • On Windows 10 systems: 393295
    • On all other OS versions: 393297
    4.5.2 Original Release
    • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Client
    • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full
    Name: Release,
    Type: REG_DWORD,
    Data: 379893
    4.5.1 Original Release
    • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Client
    • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full
    Name: Release,
    Type: REG_DWORD,
    Data:
    • On Windows 8.1 or Windows Server 2012 R2: 378675
    • On Windows 8, Windows 7 SP1, or Windows Vista SP2: 378758
    4.5 Original Release
    • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Client
    • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full
    Name: Release, Type: REG_DWORD, Data: 378389
    4 - Client Original Release HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Client Name: Install, Type: REG_DWORD, Data: 1
        HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Client Name: Version, Type: REG_SZ, Data: 4.0.30319.0
    4 - Full Original Release HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full Name: Install, Type: REG_DWORD, Data: 1
        HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full Name: Version, Type: REG_SZ, Data: 4.0.30319.0
    3.5 Original Release HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v3.5 Name: Install, Type: REG_DWORD, Data: 1
        HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v3.5 Name: SP, Type: REG_DWORD, Data: 0
    3.5 Service Pack 1 HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v3.5 Name: Install, Type: REG_DWORD, Data: 1
        HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v3.5 Name: SP, Type: REG_DWORD, Data: 1
    3.0 Original Release Follow the deployment and detection guidance in this document: http://msdn.microsoft.com/en-us/library/aa480173.aspx
        HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v3.0 Name: SP, Type: REG_DWORD, Data: 0
    3.0 Service Pack 1 HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v3.0 Name: Install, Type: REG_DWORD, Data: 1
        HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v3.0 Name: SP, Type: REG_DWORD, Data: 1
    3.0 Service Pack 2 HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v3.0 Name: Install, Type: REG_DWORD, Data: 1
        HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v3.0 Name: SP, Type: REG_DWORD, Data: 2
    2.0 Original Release HKEY_LOCAL_MACHINE\Software\Microsoft\NET Framework Setup\NDP\v2.0.50727 Name: Install, Type: REG_DWORD, Data: 1
        HKEY_LOCAL_MACHINE\Software\Microsoft\NET Framework Setup\NDP\v2.0.50727 Name: SP, Type: REG_DWORD, Data: 0
    2.0 Service Pack 1 HKEY_LOCAL_MACHINE\Software\Microsoft\NET Framework Setup\NDP\v2.0.50727 Name: Install, Type: REG_DWORD, Data: 1
        HKEY_LOCAL_MACHINE\Software\Microsoft\NET Framework Setup\NDP\v2.0.50727 Name: SP, Type: REG_DWORD, Data: 1
    2.0 Service Pack 2 HKEY_LOCAL_MACHINE\Software\Microsoft\NET Framework Setup\NDP\v2.0.50727 Name: Install, Type: REG_DWORD, Data: 1
        HKEY_LOCAL_MACHINE\Software\Microsoft\NET Framework Setup\NDP\v2.0.50727 Name: SP, Type: REG_DWORD, Data: 2
    1.1 (on 32-bit operating systems) Original Release HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v1.1.4322 Name: Install, Type: REG_DWORD, Data: 1
        HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v1.1.4322 Name: SP, Type: REG_DWORD, Data: 0
    1.1 (on 32-bit operating systems) Service Pack 1 HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v1.1.4322 Name: Install, Type: REG_DWORD, Data: 1
    1.1 (on 64-bit operating systems) Original Release HKLM\SOFTWARE\Wow6432Node\Microsoft\NET Framework Setup\NDP\v1.1.4322 Name: Install, Type: REG_DWORD, Data: 1
        HKLM\SOFTWARE\Wow6432Node\Microsoft\NET Framework Setup\NDP\v1.1.4322 Name: SP, Type: REG_DWORD, Data: 0
    1.1 (on 64-bit operating systems) Service Pack 1 HKLM\SOFTWARE\Wow6432Node\Microsoft\NET Framework Setup\NDP\v1.1.4322 Name: Install, Type: REG_DWORD, Data: 1
        HKLM\SOFTWARE\Wow6432Node\Microsoft\NET Framework Setup\NDP\v1.1.4322 Name: SP, Type: REG_DWORD, Data: 1
    1.0 (on supported platforms except for Windows XP Media Center and Tablet PC) Original Release

    HKEY_LOCAL_MACHINE\Software\Microsoft\Active Setup\Installed Components\{78705f0d-e8db-4b2d-8193-982bdda15ecd}
     
    Name: Version, Type: REG_SZ, Data: 1.0.3705.0
    1.0 (on supported platforms except for Windows XP Media Center and Tablet PC) Service Pack 1

    HKEY_LOCAL_MACHINE\Software\Microsoft\Active Setup\Installed Components\{78705f0d-e8db-4b2d-8193-982bdda15ecd}
     
    Name: Version, Type: REG_SZ, Data: 1.0.3705.1
    1.0 (on supported platforms except for Windows XP Media Center and Tablet PC) Service Pack 2

    HKEY_LOCAL_MACHINE\Software\Microsoft\Active Setup\Installed Components\{78705f0d-e8db-4b2d-8193-982bdda15ecd}
     
    Name: Version, Type: REG_SZ, Data: 1.0.3705.2
    1.0 (on supported platforms except for Windows XP Media Center and Tablet PC) Service Pack 3

    HKEY_LOCAL_MACHINE\Software\Microsoft\Active Setup\Installed Components\{78705f0d-e8db-4b2d-8193-982bdda15ecd}
     
    Name: Version, Type: REG_SZ, Data: 1.0.3705.3
    1.0 (shipped with Windows XP Media Center 2002/2004 and Tablet PC 2004) Service Pack 2

    HKEY_LOCAL_MACHINE\Software\Microsoft\Active Setup\Installed Components\{FDC11A6F-17D1-48f9-9EA3-9051954BAA24}
     
    Name: Version, Type: REG_SZ, Data: 1.0.3705.2
    1.0 (shipped with Windows XP Media Center 2005 and Tablet PC 2005) Service Pack 3

    HKEY_LOCAL_MACHINE\Software\Microsoft\Active Setup\Installed Components\{FDC11A6F-17D1-48f9-9EA3-9051954BAA24}
     
    Name: Version, Type: REG_SZ, Data: 1.0.3705.3

Recommended Deployment Detection

To detect the existence of a specific .NET Framework version regardless of the Service Pack level, or to detect a service pack level or a later service pack level of the same .NET Framework version, use the registry information that is listed in the following table.

 
.NET Framework Service Pack Level Registry Key Name Value
4 - Client Any Version HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Client Install = 1
4 - Full Any Version HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full Install = 1
3.5 Any Version HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v3.5 Install = 1
3.5 Service Pack 1 or Greater HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v3.5 SP >=1
3.0 Any Version HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v3.0 Install = 1
3.0 Service Pack 1 or Greater HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v3.0 SP >= 1
3.0 Service Pack 2 or Greater HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v3.0 SP >= 2
2.0 Any Version HKEY_LOCAL_MACHINE\Software\Microsoft\NET Framework Setup\NDP\v2.0.50727 Install = 1
2.0 Service Pack 1 or Greater HKEY_LOCAL_MACHINE\Software\Microsoft\NET Framework Setup\NDP\v2.0.50727 SP >= 1
2.0 Service Pack 2 or Greater HKEY_LOCAL_MACHINE\Software\Microsoft\NET Framework Setup\NDP\v2.0.50727 SP >= 2
1.1 Any Version HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v1.1.4322 Install = 1
1.1 Service Pack 1 or Greater HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v1.1.4322 SP >= 1
1.0 Any Version HKEY_LOCAL_MACHINE\Software\Microsoft\.NET Framework\Policy\v1.0 Name: 3705, Type: REG_SZ, exists
1.0 (on supported platforms except for Windows XP Media Center and Tablet PC) Service Pack 1 or Greater HKEY_LOCAL_MACHINE\Software\Microsoft\Active Setup\Installed Components\{78705f0d-e8db-4b2d-8193-982bdda15ecd} Version >= 1.0.3705.1
1.0 (on supported platforms except for Windows XP Media Center and Tablet PC) Service Pack 2 or Greater HKEY_LOCAL_MACHINE\Software\Microsoft\Active Setup\Installed Components\{78705f0d-e8db-4b2d-8193-982bdda15ecd} Version >= 1.0.3705.2
1.0 (on supported platforms except for Windows XP Media Center and Tablet PC) Service Pack 3 or Greater HKEY_LOCAL_MACHINE\Software\Microsoft\Active Setup\Installed Components\{78705f0d-e8db-4b2d-8193-982bdda15ecd} Version >= 1.0.3705.3
1.0 (shipped with Windows XP Media Center 2002/2004 and Tablet PC 2004) Service Pack 2 or Greater HKEY_LOCAL_MACHINE\Software\Microsoft\Active Setup\Installed Components\{FDC11A6F-17D1-48f9-9EA3-9051954BAA24} Version >= 1.0.3705.2
1.0 (shipped with Windows XP Media Center 2005 and Tablet PC 2005) Service Pack 3 or Greater HKEY_LOCAL_MACHINE\Software\Microsoft\Active Setup\Installed Components\{FDC11A6F-17D1-48f9-9EA3-9051954BAA24} Version >= 1.0.3705.3

References


For more information about .NET Framework versions, visit how to determine which .NET Framework versions are installed

For more information about the benefits of the .NET Framework, click the following article number to view the article in the Microsoft Knowledge Base:

829019 Benefits of the Microsoft .NET Framework


For more information about Microsoft’s currently supported products, visit the Microsoft Product Support Lifecycle website.

For more information about the Windows registry, click the following article number to view the article in the Microsoft Knowledge Base:

256986 Windows registry information for advanced users