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Michael Crump is a Microsoft MVP, INETA Community Champion, and an author of several .NET Framework eBooks. He speaks at a variety of conferences and has written dozens of articles on .NET development. He currently works at Telerik with a focus on our XAML control suite.
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Unblock Files In Windows 8 Using PowerShell And Registry

05.01.2012
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Introduction

In case you haven’t noticed, the following “Unblock” button is missing from Windows 8 file properties.

image

This can be a tad annoying when downloading zip files from the internet and answering security prompt after prompt to get the file loaded. So, what did I do? I fixed it by using PowerShell and a quick registry entry.

The Solution

Note: If you don’t want to dig into the registry yourself then you can just download the completed .REG file here.

Create a new registry entry in : HKEY_CLASSES_ROOT\*\shell\ and call it powershell, now set the Data to be “Unblock Files”.

SNAGHTML16b57822

Underneath the powershell key we just created, add a new key called command and set the data to be C:\\Windows\\system32\\WindowsPowerShell\\v1.0\\powershell.exe Unblock-File  -LiteralPath '%L'

Just copy and paste that entire line.

SNAGHTML16b7f280

Now if you right click on a file or files, then you will see the option to “Unblock Files

image

Also as stated earlier, you can download a .REG file from here to avoid performing any of this work. The contents of the registry file are as follows:

Windows Registry Editor Version 5.00

[HKEY_CLASSES_ROOT\*\shell\powershell]
@="Unblock Files"

[HKEY_CLASSES_ROOT\*\shell\powershell\command]
@="C:\\\\Windows\\\\system32\\\\WindowsPowerShell\\\\v1.0\\\\powershell.exe Unblock-File  -LiteralPath '%L'"

Wrap-up

I hope this helped! Thanks for reading.

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Published at DZone with permission of Michael Crump, author and DZone MVB. (source)

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