when I was installing github for windows ,some errors occurred !

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install.log error messages:

The following properties have been set:
Property: [AdminUser] = true {boolean}
Property: [InstallMode] = HomeSite {string}
Property: [NTProductType] = 1 {int}
Property: [ProcessorArchitecture] = AMD64 {string}
Property: [VersionNT] = 10.0.0 {version}
Running checks for package 'Microsoft .NET Framework 4.5 (x86 and x64)', phase BuildList
Reading value 'Version' of registry key 'HKLM\Software\Microsoft\NET Framework Setup\NDP\v4\Full'
Read string value '4.6.00079'
Setting value '4.6.00079 {string}' for property 'DotNet45Full_TargetVersion'
The following properties have been set for package 'Microsoft .NET Framework 4.5 (x86 and x64)':
Property: [DotNet45Full_TargetVersion] = 4.6.00079 {string}
Running checks for command 'DotNetFX45\dotNetFx45_Full_x86_x64.exe'
Result of running operator 'ValueEqualTo' on property 'InstallMode' and value 'HomeSite': true
Result of checks for command 'DotNetFX45\dotNetFx45_Full_x86_x64.exe' is 'Bypass'
Running checks for command 'DotNetFX45\dotNetFx45_Full_setup.exe'
Result of running operator 'ValueNotEqualTo' on property 'InstallMode' and value 'HomeSite': false
Result of running operator 'VersionGreaterThanOrEqualTo' on property 'DotNet45Full_TargetVersion' and value '4.5.50709': true
Result of checks for command 'DotNetFX45\dotNetFx45_Full_setup.exe' is 'Bypass'
'Microsoft .NET Framework 4.5 (x86 and x64)' RunCheck result: No Install Needed
Running checks for package 'Windows Installer 4.5', phase BuildList
Looking up path for special folder 'WindowsFolder'
Running check with folder 'C:\Windows\System32' and file 'msi.dll'
Attempting to find file 'C:\Windows\System32\msi.dll'
File version is '5.0.10240.16384'
Setting value '5.0.10240.16384 {version}' for property 'VersionMsiDll'
The following properties have been set for package 'Windows Installer 4.5':
Property: [VersionMsiDll] = 5.0.10240.16384 {version}
Running checks for command 'WindowsInstaller4_5\WindowsXP-KB942288-v3-x86.exe'
Result of running operator 'VersionGreaterThanOrEqualTo' on property 'VersionMsi' and value '4.5': true
Result of checks for command 'WindowsInstaller4_5\WindowsXP-KB942288-v3-x86.exe' is 'Bypass'
Running checks for command 'WindowsInstaller4_5\WindowsXP-KB958655-v2-x86-ENU.exe'
Result of running operator 'VersionGreaterThanOrEqualTo' on property 'VersionMsiDll' and value '4.5.6001.22299': true
Result of checks for command 'WindowsInstaller4_5\WindowsXP-KB958655-v2-x86-ENU.exe' is 'Bypass'
Running checks for command 'WindowsInstaller4_5\WindowsServer2003-KB942288-v4-x86.exe'
Result of running operator 'VersionGreaterThanOrEqualTo' on property 'VersionMsi' and value '4.5': true
Result of checks for command 'WindowsInstaller4_5\WindowsServer2003-KB942288-v4-x86.exe' is 'Bypass'
Running checks for command 'WindowsInstaller4_5\WindowsServer2003-KB958655-v2-x86-ENU.exe'
Result of running operator 'VersionGreaterThanOrEqualTo' on property 'VersionMsiDll' and value '4.5.6001.22299': true
Result of checks for command 'WindowsInstaller4_5\WindowsServer2003-KB958655-v2-x86-ENU.exe' is 'Bypass'
Running checks for command 'WindowsInstaller4_5\WindowsServer2003-KB942288-v4-x64.exe'
Result of running operator 'VersionGreaterThanOrEqualTo' on property 'VersionMsi' and value '4.5': true
Result of checks for command 'WindowsInstaller4_5\WindowsServer2003-KB942288-v4-x64.exe' is 'Bypass'
Running checks for command 'WindowsInstaller4_5\WindowsServer2003.WindowsXP-KB958655-v2-x64-ENU.exe'
Result of running operator 'VersionGreaterThanOrEqualTo' on property 'VersionMsiDll' and value '4.5.6001.22299': true
Result of checks for command 'WindowsInstaller4_5\WindowsServer2003.WindowsXP-KB958655-v2-x64-ENU.exe' is 'Bypass'
Running checks for command 'WindowsInstaller4_5\Windows6.0-KB958655-v2-x86.MSU'
Result of running operator 'VersionGreaterThanOrEqualTo' on property 'VersionMsiDll' and value '4.5.6001.22308': true
Result of checks for command 'WindowsInstaller4_5\Windows6.0-KB958655-v2-x86.MSU' is 'Bypass'
Running checks for command 'WindowsInstaller4_5\Windows6.0-KB958655-v2-x64.MSU'
Result of running operator 'VersionGreaterThanOrEqualTo' on property 'VersionMsiDll' and value '4.5.6001.22308': true
Result of checks for command 'WindowsInstaller4_5\Windows6.0-KB958655-v2-x64.MSU' is 'Bypass'
'Windows Installer 4.5' RunCheck result: No Install Needed
Launching Application.
URLDownloadToCacheFile failed with HRESULT '-2146697208'
Error: An error occurred trying to download 'http://github-windows.s3.amazonaws.com/GitHub.application'.

5.RD71SVBW.log error messages:

PLATFORM VERSION INFO
    Windows             : 10.0.10240.0 (Win32NT)
    Common Language Runtime     : 4.0.30319.42000
    System.Deployment.dll         : 4.6.79.0 built by: NETFXREL2
    clr.dll             : 4.6.79.0 built by: NETFXREL2
    dfdll.dll             : 4.6.79.0 built by: NETFXREL2
    dfshim.dll             : 10.0.10240.16384 (th1.150709-1700)

SOURCES
    Deployment url            : http://github-windows.s3.amazonaws.com/GitHub.application
                        Server        : AmazonS3
    Application url            : http://github-windows.s3.amazonaws.com/Application%20Files/GitHub_3_0_5_2/GitHub.exe.manifest
                        Server        : AmazonS3

IDENTITIES
    Deployment Identity        : GitHub.application, Version=3.0.5.2, Culture=neutral, PublicKeyToken=317444273a93ac29, processorArchitecture=x86
    Application Identity        : GitHub.exe, Version=3.0.5.2, Culture=neutral, PublicKeyToken=317444273a93ac29, processorArchitecture=x86, type=win32

APPLICATION SUMMARY
    * Installable application.
    * Trust url parameter is set.
ERROR SUMMARY
    Below is a summary of the errors, details of these errors are listed later in the log.
    * Activation of http://github-windows.s3.amazonaws.com/GitHub.application resulted in exception. Following failure messages were detected:
        + Downloading http://github-windows.s3.amazonaws.com/Application Files/GitHub_3_0_5_2/lfs-amd64.7z.deploy did not succeed.
        + The underlying connection was closed: An unexpected error occurred on a receive.
        + Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host.
        + An existing connection was forcibly closed by the remote host

COMPONENT STORE TRANSACTION FAILURE SUMMARY
    No transaction error was detected.

WARNINGS
    There were no warnings during this operation.

OPERATION PROGRESS STATUS
    * [2015-9-23 19:58:37] : Activation of http://github-windows.s3.amazonaws.com/GitHub.application has started.
    * [2015-9-23 19:58:50] : Processing of deployment manifest has successfully completed.
    * [2015-9-23 19:58:50] : Installation of the application has started.
    * [2015-9-23 19:58:54] : Processing of application manifest has successfully completed.
    * [2015-9-23 19:58:59] : Found compatible runtime version 4.0.30319.
    * [2015-9-23 19:58:59] : Request of trust and detection of platform is complete.

ERROR DETAILS
    Following errors were detected during this operation.
    * [2015-9-23 20:13:24] System.Deployment.Application.DeploymentDownloadException (Unknown subtype)
        - Downloading http://github-windows.s3.amazonaws.com/Application Files/GitHub_3_0_5_2/lfs-amd64.7z.deploy did not succeed.
        - Source: System.Deployment
        - Stack trace:
            at System.Deployment.Application.SystemNetDownloader.DownloadSingleFile(DownloadQueueItem next)
            at System.Deployment.Application.SystemNetDownloader.DownloadAllFiles()
            at System.Deployment.Application.FileDownloader.Download(SubscriptionState subState)
            at System.Deployment.Application.DownloadManager.DownloadDependencies(SubscriptionState subState, AssemblyManifest deployManifest, AssemblyManifest appManifest, Uri sourceUriBase, String targetDirectory, String group, IDownloadNotification notification, DownloadOptions options)
            at System.Deployment.Application.ApplicationActivator.DownloadApplication(SubscriptionState subState, ActivationDescription actDesc, Int64 transactionId, TempDirectory& downloadTemp)
            at System.Deployment.Application.ApplicationActivator.InstallApplication(SubscriptionState& subState, ActivationDescription actDesc)
            at System.Deployment.Application.ApplicationActivator.PerformDeploymentActivation(Uri activationUri, Boolean isShortcut, String textualSubId, String deploymentProviderUrlFromExtension, BrowserSettings browserSettings, String& errorPageUrl)
            at System.Deployment.Application.ApplicationActivator.ActivateDeploymentWorker(Object state)
        --- Inner Exception ---
        System.Net.WebException
        - The underlying connection was closed: An unexpected error occurred on a receive.
        - Source: System
        - Stack trace:
            at System.Net.HttpWebRequest.GetResponse()
            at System.Deployment.Application.SystemNetDownloader.DownloadSingleFile(DownloadQueueItem next)
        --- Inner Exception ---
        System.IO.IOException
        - Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host.
        - Source: System
        - Stack trace:
            at System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size)
            at System.Net.Connection.SyncRead(HttpWebRequest request, Boolean userRetrievedStream, Boolean probeRead)
        --- Inner Exception ---
        System.Net.Sockets.SocketException
        - An existing connection was forcibly closed by the remote host
        - Source: System
        - Stack trace:
            at System.Net.Sockets.Socket.Receive(Byte[] buffer, Int32 offset, Int32 size, SocketFlags socketFlags)
            at System.Net.Sockets.NetworkStream.Read(Byte[] buffer, Int32 offset, Int32 size)

COMPONENT STORE TRANSACTION DETAILS
    No transaction information is available.

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