Unblocking executable files on Vista

by Mitch Tulloch [Published on 25 Feb. 2009 / Last Updated on 31 Oct. 2008]

How to get rid of an annoying security dialog.

Sometimes when you download an executable file to your Vista computer and then try to open (execute) the file, an Open File – Security Warning dialog box will appear saying "The publisher could not be verified—are you sure you want to run this software?" If you know that the file is safe to open (run) you can prevent this dialog from appearing in the future by doing the following:

1. Right-click on the file in Windows Explorer and select Properites.

2. Select the General tab of the file's properties sheet.

3. Click the Unblock button and then click OK.

If you want to disable this feature entirely, you can do it using Group Policy by going to User Configuration \ Administrative Templates \ Windows Components \ Attachment Manager and enabling the policy named "Do not preserve zone information in file attachments".

The Author — Mitch Tulloch

Mitch Tulloch is a widely recognized expert on Windows administration, networking, and security. He has been repeatedly awarded Most Valuable Professional (MVP) status by Microsoft for his outstanding contributions in supporting users who deploy and use Microsoft platforms, products and solutions. Mitch has published over two hundred articles on different IT websites and magazines, and he has written or contributed to almost two dozen books and is lead author for the Windows 7 Resource Kit from Microsoft Press. For more information, see www.mtit.com .

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