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Fix for Blob Storage Task failing due to:

Microsoft.WindowsAzure.Storage.StorageException,Message=The remote server returned an error: (400) Bad Request.,Source=Microsoft.WindowsAzure.Storage,StorageExtendedMessage=The TLS version of the connection is not permitted on this storage account.

Add a system-wide registry key (e.g. via group policy) to any machine that needs to make TLS 1.2 connections from a .NET app. This will cause .NET to use the "System Default" TLS versions which adds TLS 1.2 as an available protocol AND it will allow the scripts to use future TLS Versions when the OS supports them. (e.g. TLS 1.3)

For 64 bit OS use first key, 32 bit use second . . . 

reg add HKLM\SOFTWARE\Microsoft\.NETFramework\v4.0.30319 /v SystemDefaultTlsVersions /t REG_DWORD /d 1 /f /reg:64

reg add HKLM\SOFTWARE\Microsoft\.NETFramework\v4.0.30319 /v SystemDefaultTlsVersions /t REG_DWORD /d 1 /f /reg:32

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