Open File - Security Warning
I have a mapped drive letter to a file server share where I keep many utility scripts (.cmd files).Whenever I right-click a .cmd file and choose Edit, I'm given an "Open File - Security Warning" dialog.How can I disable this prompt? I'd like everything on this server to be considered as safe as the things on my local drive.
May 14th, 2007 5:58am

You can use the Group Policy Editor. Google "Open File Security Warning," and take your pick of solutions and workarounds; there are about eight on the 1st page of results.
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May 21st, 2007 1:21pm

Thanks... but that wasn't really helpful. I spent hours poking at "Open File Security Warning" Google results before posting here; they were all about XPsp2. Adding the server to the Trusted sites zone is NOT SUFFICIENT in Vista; Vista's default security level for Trusted Sites is Medium (sans Protected Mode).I did eventually resort to a brute-force approach to find the problem. After adding the server to Trusted sites, edit Security Settings ("Custom level") for the zone, and Enable "Launching applications and unsafe files." (Or just drop your pants and set security to Low for Trusted sites. They are trusted, aren't they?)
May 23rd, 2007 6:17am

Its easy....just go to internet options (on internet explorer) -> Security->Intranet->Press the Sites Button and deactivate the first option and activete the other 3. Its worked for me....cheers
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June 13th, 2007 9:12pm

I ran into the samething. In my research to fix this,I came accross this article on MSDN blogs. http://blogs.msdn.com/gblock/archive/2006/12/19/tips-steams-zones-vista-and-blocked-files-in-ie.aspx?CommentPosted=true#commentmessage
July 19th, 2007 9:22pm

How to eliminate the Open File Security Warning from programs accessed from the file server. Open the Control Panel Open Internet Options Click the Security Tab Click on Local Intranet Click on Sties Click Advanced Typethe drive letter of your file server where the application is locatedin the Add this website to this zone box. Click Add Click Close Click OK Close Internet Options by clicking OK Close the Control Panel You should no longer get the Open File Security Warning when you run an application from the file server.
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November 5th, 2007 9:36pm

Hi, The posted 'fix' by Technology Instructor doesn't work for me. Interestingly it did work for a collegue 2 months previous (and is still working for him). On our Vista and Windows Server 2003 that have been recently upgraded to IE7 we have the same issue running one of our apps via a network shortcut. I have researched and tried the above fix with no change. I have considred applying the registry update discussed here http://www.petri.co.il/forums/showthread.php?t=3871but am unsure as to how safe this might be. I have considered implementing this fix http://www.vistaheads.com/forums/microsoft-public-windows-vista-security/16603-how-remove-open-file-security-warning-window.htmlbut am not sure how to implement this across our domain. Am sure a Microsoft member can provide worthwhile information to removing this annoying impass. -Dale
February 14th, 2008 1:41am

Great info! Worked for me!!! Thank you.
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July 21st, 2008 8:33pm

joeship wrote: Great info! Worked for me!!! Thank you. Joeship What worked for you??? There are 4 separate solutions in this thread? Ronnie Vernon Microsoft MVP Windows Desktop Experience
July 22nd, 2008 9:04pm

This solution worked for me! We have a drive mapped to H. I added just simply H and H:\ which redirected to the actual path and it was fine after that. No more security warning. Technology Instructor wrote: How to eliminate the Open File Security Warning from programs accessed from the file server. Open the Control Panel Open Internet Options Click the Security Tab Click on Local Intranet Click on Sties Click Advanced Typethe drive letter of your file server where the application is locatedin the Add this website to this zone box. Click Add Click Close Click OK Close Internet Options by clicking OK Close the Control Panel You should no longer get the Open File Security Warning when you run an application from the file server.
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July 30th, 2008 3:03pm

The 12-step solution worked for me even when I added the UNC instead of the mapped drive letter. (Windows Vista 32-bit accessing Windows Server 2003 / Windows Home Server)
August 28th, 2008 12:26am

That worked for me too. WindowsXP sp2. It also fixed some of the generic errors that I was getting in different programs that run from my server. Thanks for sharing.
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November 3rd, 2008 5:21pm

This solution did not work Windows Server 2003 R2 fully patched running as Terminal Server I mapped a drive and was getting permission error when accessing file. I shut-off windows security and then right clicked file and copy and then copy shortcut to desktop. Application now runs but get OFSW error. Tried above - no luck. I see all the solutions but still nothing working. Ideas?
December 12th, 2008 12:34am

I know this is an old post but I want to get this on the web somewhere. After tweaking my registery tomove my "All Programs" to the menu in place of the "Favorites" I had the same issue. All the links gave the "File Open Security Waning". Nothing I could do to reset the permissions worked; it's like the perms were orphaned.What I did was copy the links to a folder on my deskop, open each one, delete he original links (shortuts) ten copy the new ones in. This solved the problem.You can first test to see if this is the issue by opening the program directly (without the link). If the program does notgive warning and link does the above should fix it.
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March 28th, 2009 9:17pm

Thanks for this. Since installing Firefox 3.5 this has been driving me nuts. It also got rid of the "Do you want to move copy files from this zone" msgs when moving or copying files from my network. Thanks.
July 4th, 2009 1:47am

Is there a registry change that will perform the 12 step solution?
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August 5th, 2009 4:37pm

This worked for me...~ go to C:\ProgramData\Microsoft\Windows\Start Menu\~ copy the Programs folder to another location, until needed (ie...New Folder)~ then delete the Programs folder in C:\ProgramData\Microsoft\Windows\Start Menu\~ copy the other Programs folder back into C:\ProgramData\Microsoft\Windows\Start Menu\~ and you're DONE!!!
November 26th, 2009 3:31am

This worked for me...~ go to C:\ProgramData\Microsoft\Windows\Start Menu\~ copy the Programs folder to another location, until needed (ie...New Folder)~ then delete the Programs folder in C:\ProgramData\Microsoft\Windows\Start Menu\~ copy the other Programs folder back into C:\ProgramData\Microsoft\Windows\Start Menu\~ and you're DONE!!! Worked for me. Very odd bug, hope they fix it in win7 SP1.I'll have to make a batch to do this per logon.
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December 7th, 2009 8:27am

How to eliminate the “Open File Security Warning” from programs accessed from the file server. Type the drive letter of your file server where the application is located in the “Add this website to this zone” box. This worked for me. Interestingly when I added m:\ it changed it to the "file://hostname" URL
March 2nd, 2010 1:35am

instead of a letter, i've decided to put the IP of the current computer, since the current computer should always trust its content:127.0.0.1
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March 14th, 2010 1:01pm

instead of a letter, i've decided to put the IP of the current computer, since the current computer should always trust its content: 127.0.0.1 The loopback IP solution worked for me. I was going nuts! Was getting prompted w/ "these files may harm your computer" every time I tried to move a file on a mapped network drive. Using Windows 7 Enterprise.
April 22nd, 2010 4:28pm

so are you saying that what i've done has helped you ?
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April 22nd, 2010 7:03pm

How to eliminate the “Open File Security Warning” from programs accessed from the file server. Open the Control Panel Open Internet Options Click the Security Tab Click on Local Intranet Click on Sties Click Advanced Type the drive letter of your file server where the application is located in the “Add this website to this zone” box. Click Add Click Close Click OK Close Internet Options by clicking OK Close the Control Panel You should no longer get the “Open File Security Warning” when you run an application from the file server. This solution worked for me as well on Windows Server 2008 Jason
May 17th, 2010 5:50pm

I've tried all of these solutions and none work. Vista is so awesome.
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June 2nd, 2010 8:14am

I had a look at this page: http://www.1stbyte.com/2007/07/06/open-file-security-warning-on-mapped-drive/ Where they suggest the same solution of adding the UNC paths to the local intranet zone. Also suggests adding .exe to the 'attachement manager' User Configuration -> Admin Templates -> Windows Components -> Attachment Manager -> Inclusion list for moderate file risk types I've added .exe under there after adding the server paths (drive letters and server IPs) to the Local Intranet zone. Seems to work here for XP SP3 under a 2003 SP2 domain.
June 16th, 2010 10:50am

from some reason, this problematic window came back , and what i did before didn't help (adding 127.0.0.1 to the sites...) . i use winXP 32 bit home edition sp3 . Diggory Gray , can you please explain exctly what you offered here?
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July 12th, 2010 10:17pm

Finnaly a straight answer thanks dude works great
July 23rd, 2010 10:28pm

How to eliminate the “Open File Security Warning” from programs accessed from the file server. ...(12 steps)... Thank you! Such a simple resolution. Why is it so xxxxxxx hard to find such a simple answer? * Worked for Windows Server 2008 (DataCenter Edition on Amazon-EC2) as well. Voted you up.
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August 13th, 2010 8:28pm

Is there a way to do the 12 step solution from a batch, group policy, or some other way to deploy it to 50+ workstations? I am using Win7 SP1 workstations, and server 2008r2
April 18th, 2011 11:15pm

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