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?

enter image description here

score 12 · Answer 1 · answered Jul 22 '16 at 03:47

12

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)

answered Jul 22 '16 at 03:47

OzBob

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This bulk operation didn't work on Windows 10. I had to use double `%`. – akinuri Jan 08 '19 at 17:59
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@akinuri I tend towards Powershell solutions on Windows 10 – OzBob Feb 28 '19 at 06:31

score 11 · Answer 2 · edited May 23 '17 at 12:02

11

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.

edited May 23 '17 at 12:02

Community

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answered Mar 07 '13 at 05:34

Nate Hekman

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For a filename with spaces in it, this works: `echo.>"myDownloadedFile.exe":Zone.Identifier` – nateirvin Apr 06 '18 at 15:27
what does `echo.>` do ? – mrid Apr 05 '19 at 07:05
`echo.` echoes nothing, and `>` outputs this nothing to the specified file. Or in this case, to the zone identifier of the file. – Nate Hekman Apr 06 '19 at 17:31

score 2 · Answer 3 · answered Mar 07 '13 at 05:33

2

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

answered Mar 07 '13 at 05:33

Loïc MICHEL

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Batch file to unblock files copied from internet

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