Share via

disable these files might be harmful to your computer via group policy

Question

Tuesday, January 7, 2020 12:49 AM

Greetings,

   When the preview pane is turned on in file explorer and a user clicks on their home drive and then an excel document they get the 'harmful' message. How do I turn this off via group policy?

  I have edited the Site to Zone assignment and added things like 'file://h:' and 'file://10.1.*' and 'file://server' but nothing seems to allow the preview pane to work.

Thanks

David Z

All replies (11)

Tuesday, January 7, 2020 1:46 AM

Create a GPO and enable three settings. Related descriptions and values explained in citations.

Both Computer Configuration and User Configuration has these:

Policies \ Administrative Templates \ Windows Components \ Internet Explorer

Internet Control Panel

  • Security Page

  • Intranet Zone Template > Enabled > Low

  • Site to Zone Assignment List > Enabled > Show...

    Valuename = yourserver

    • Value = 1 (Intranet zone)

    Intranet Zone

    Show security warning for potentially unsafe files > Enabled > Enable

S.Sengupta,Microsoft MVP Windows and Devices for IT, Windows Insider MVP

Tuesday, January 7, 2020 8:34 AM

Hi David Zemdegs,

Thank you for posting in our forum

Open Internet Explorer > Internet Options > Security tab
Select Local Intranet and click on Sites.
Click on Advanced and add your DFS Root in format: file://domain.local
To solve it on all machines in your workgroup by setting a Group Policy:

User Configuration > Policies > Administrative Templates > Windows Components > Internet Explorer > Internet Control Panel > Security Page.
Enable Policy called Site to Zone Assignment List.
Click Show and your DFS Root in format file://domain.local (value for Local Intranet should be 1).

Best wishes
Vicky

Please remember to mark the replies as answers if they help.
If you have feedback for TechNet Subscriber Support, contact [email protected].

Tuesday, January 7, 2020 8:05 PM

Thanks.

That didnt work. Im wondering about the exact syntax/format of the value of the server.

I just added the dns alias. Do I need an fqdn? Do I need the 'file:' prefix? or '\' prefix?

Wednesday, January 8, 2020 10:03 AM

Hi 

Thanks for the update.

I have done some experiments in my environment, and if I make progress, I will update here as soon as possible

Thank you for your understanding and support.

Best wishes
Vicky

Please remember to mark the replies as answers if they help.
If you have feedback for TechNet Subscriber Support, contact [email protected].

Thursday, January 9, 2020 9:51 AM

Hi，

thanks for your patience.

After my experiment again, following my steps in my environment can be successful.

So I want to confirm with you that what you described is not working, is the GPO successfully deployed but not applied, or the GPO is not successfully

deployed.

Best wishes

Vicky

Please remember to mark the replies as answers if they help.
If you have feedback for TechNet Subscriber Support, contact [email protected].

Monday, January 13, 2020 1:38 AM

Hi,

Just want to confirm the current situations.

Please feel free to let us know if you need further assistance.

Best Regards,

Vicky

Please remember to mark the replies as answers if they help.
If you have feedback for TechNet Subscriber Support, contact [email protected].

Monday, January 13, 2020 3:23 AM

Your solution mentions a DFR root. We are not using DFS.

Tuesday, January 14, 2020 6:46 AM

Hi，

Thanks for the update.

I want to confirm with you that what you described is not working, is the GPO successfully deployed but not applied, or the GPO is not successfully

deployed.

Best wishes

Vicky

Please remember to mark the replies as answers if they help.
If you have feedback for TechNet Subscriber Support, contact [email protected].

Thursday, January 16, 2020 2:28 AM

Hi,

Just checking in to see if the information provided was helpful. Please let us know if you would like further assistance.

Best Regards,

Vicky

Please remember to mark the replies as answers if they help.
If you have feedback for TechNet Subscriber Support, contact [email protected].

Thursday, January 16, 2020 2:34 AM

Sadly it wasnt helpful. We have decided that we do not have the time to investigate this further and will live with not being able to use this feature.

Monday, January 20, 2020 1:24 AM

Hi，

Thanks for the update.

Best wishes

Vicky

Please remember to mark the replies as answers if they help.
If you have feedback for TechNet Subscriber Support, contact [email protected].