Batch file to unblock files copied from internet

Question

When we copy files (dll) from internet, Win7 blocks it. The unblock option appears as in the following image when we take the file properties. What command can I use to unblock the file from a batch file?

Dupleix

Answer 1

Supposedly this should work:

echo.>myDownloadedFile.exe:Zone.Identifier

See a more detailed discussion here, Unblock a file with PowerShell?, which also describes other approaches using Powershell and the streams tool from SysInternals.

Irma

For a filename with spaces in it, this works: echo.>"myDownloadedFile.exe":Zone.Identifier – Scut

what does echo.> do ? – Covenant

echo. echoes nothing, and > outputs this nothing to the specified file. Or in this case, to the zone identifier of the file. – Irma

Answer 2

To do one is as per other suggestions. i.e either:

echo.>myDownloadedFile.dll:Zone.Identifier

or

Unblock-File myDownloadedFile.dll

but to do it 'bulk' as OP requested:

get-childitem *.jpg, *.gif | Unblock-File 

or in DOS:

FOR %a in (*.jpg *.gif) do (echo.>%a:Zone.Identifier)

Colton

This bulk operation didn't work on Windows 10. I had to use double %. – Flesher

@Flesher I tend towards Powershell solutions on Windows 10 – Colton

Answer 3

You can use streams -d path/to/file.zip This can be found here http://technet.microsoft.com/en-us/sysinternals/bb897440

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