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Open File Security Warning - Enable or Disable
How to Disable the "Open File Security Warning" in Windows
Published by Brink
22 Aug 2011
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 Published by |
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How to Disable the "Open File Security Warning" in Windows
 Information
This will show you how to enable or disable XP, Vista, or Windows 7 prompting you with the Open File Security Warning when you open or run a downloaded or copied file from the internet or another computer on your computer.
 Warning
The Open File - Security Warning prompt is a security measure in Windows 7 and Vista to ask for your permission (like UAC) before allowing a downloaded or copied file from the internet or another computer to be opened or run on your computer.
Disabling Open File - Security Warning will reduce the security level of Windows, and place your computer at a higher risk of being infected by malware.
Disable at your own risk if you no longer want to have a Open File - Security Warning.
EXAMPLE: Open File - Security Warning
- Do you want to open this File? Unknown Publisher
- The Publisher could not be verified. Are you sure you want to run this software? Unknown Publisher
- Do you want tio run this file? Application



 OPTION ONE 
To Enable or Disable "Zone File Checking" using a BAT File Download
NOTE: This option will enable or disable the "Open File Security Warning" completely by enabling or disabling all security Zone checking. 1. Do step 2, 3, 4, or 5 below for what you would like to do.
2. To Enable Zone Checking for Current User Only
NOTE: Step 4 or 5 below will override this step.A) Click/tap on the Download button below to download the .bat file below to your desktop, run it, and go to step 7 below.Enable_Zone_Checking_for_Current_User.bat

3. To Disable Zone Checking for Current User Only
NOTE: Step 4 or 5 below will override this step.A) Click/tap on the Download button below to download the .bat file below to your desktop, run it, and go to step 7 below.Disable_Zone_Checking_for_Current_User.bat

4. To Enable Zone Checking for All Users
NOTE: You must be logged in as an administrator to be able to do this option. This is the default setting. This step will override steps 2 and 3 above.A) Click/tap on the Download button below to download the .bat file below to your desktop.Enable_Zone_Checking_for_All_Users.bat

B) Right click on the downloaded .bat file, click on Run as administrator, and go to step 6 below.
5. To Disable Zone Checking for All Users
NOTE: You must be logged in as an administrator to be able to do this option. This step will override steps 2 and 3 above.A) Click/tap on the Download button below to download the .bat file below to your desktop.Disable_Zone_Checking_for_All_Users.bat

B) Right click on the downloaded .bat file, click on Run as administrator, and go to step 6 below.
6. If prompted, click/tap on Run.
7. You will now notice a command prompt quckly open and close while applying the changes to your registry.
8. If you used step 4 or 5 above, then log off and on, or restart the computer to fully apply.
 OPTION TWO 
To Enable or Disable "Open File Security Warning" for Specific File Types using a REG File Download
NOTE: This option uses the same group policy as OPTION THREE below, but will affect all users on the computer. You must be logged in as an administrator to be able to do this option.1. To Enable the "Open File Security Warning"
NOTE: This is the default setting.A) Click on the Download button below to download the file below.
Enable_Open-File_Security_Warning.reg

B) Go to step 3.
2. To Disable the "Open File Security Warning"A) Click on the Download button below to download the file below.
Disable_Open-File_Security_Warning.reg

 Note
This will include the same file extensions in step 4D of OPTION THREE below. If you would like to add or remove file extensions from the exception list, then: - After downloading the REG file, do steps 3-5 below first.
- Open the Start Menu, type regedit in the search box, and press Enter.
- If prompted by UAC, click on Yes (Windows 7) or Continue (Vista).
- In regedit, navigate to the location below:
Code:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Associations
- In the right pane of Associations, double click on LowRiskFileTypes.
- Add or remove file extensions using the same format, and click on OK when finished.
- Close regedit, and go to step 6 below.

3. Save the .reg file to the desktop.
4. Double click on the downloaded .reg file to merge it.
5. Click on Run, Yes (Windows 7) or Continue (Vista), Yes, and OK when prompted.
6. Log off and log on, or restart the computer to apply.
7. When done, you can delete the downloaded .reg file if you like.
 OPTION THREE 
To Enable or Disable "Open File Security Warning" for Specific File Types using the Local Group Policy Editor
NOTE: You must be logged in as an administrator to be able to do this option.1. Open the all users, specific users or groups, or all users except administrators Local Group Policy Editor for how you want this policy applied.
2. In the left pane, click on to expand User Configuration, Administrative Templates, Windows Components, and Attachment Manager. (see screenshot below)
3. To Enable the "Open File Security Warning"A) In the right pane, double click on Do not preserve zone information in file attachments. (see screenshot below step 2)
B) Select (dot) either Not Configured or Disabled, and click on OK. (see screenshot below)
NOTE: Not Configured is the default setting.
C) In the right pane, double click on Inclusion list for low file types. (see screenshot below step 2)
D) Select (dot) either Not Configured or Disabled, and click on OK. (see screenshot below)
NOTE: Not Configured is the default setting.
4. To Disable the "Open File Security Warning"A) In the right pane, double click on Do not preserve zone information in file attachments. (see screenshot below step 2)
B) Select (dot) Enabled, and click on OK. (see screenshot below)
C) In the right pane, double click on Inclusion list for low file types. (see screenshot below step 2)
D) Select (dot) Enabled, then copy and paste the extensions below exactly as is into the Options box and click on OK. (see screenshot below)
NOTE: These are the most common file extensions for this. If you like, you could add or remove file extensions to or from the list at anytime for those that you want to or do not want to get a Open File - Security Warning for.
Code:
.avi;.bat;.com;.cmd;.exe;.htm;.html;.lnk;.mpg;.mpeg;.mov;.mp3;.msi;.m3u;.rar;.reg;.txt;.vbs;.wav;.zip;

5. Close the Local Group Policy Editor window.
That's it,
Shawn
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22 Aug 2011
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#1
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Good job Shawn, and quick on the draw too.
However when I open the tutorial page (and others which have several thumbnails) the display is truncated on both sides.

This is how it looks when I hit Reply to the thread.
EDIT: I just downloaded and Merged the Disable warning, and I am still getting the warning on the downloaded .reg file.
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My System Specs |
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Computer type PC/Desktop
System Manufacturer/Model Number Home Built Desktop By DataTech
OS Windows 7 Ultimate X64 SP1
CPU Intel i5-2550K, Differing ~4.4-4.8GHz No built in GPU
Motherboard ASUS P8Z68-V PRO/GEN3
Memory 16GB G.Skill Sniper 1866MHz @ 2133MHz 2x8GB
Graphics Card ASUS GTX650TIB-DC2OC-2GD5, (650TI Boost)
Sound Card Onboard Realtek 5-1
Monitor(s) Displays Samsung P2570HD
Screen Resolution 1920x1080
Keyboard E-Z Eyes, bright yellow keys with large characters
Mouse steelseries SENSEI Laser Pro Gaming
PSU Corsair HX650W
Case Inwin Dragon Rider
Cooling Hyper 212 EVO w/two Noctua fans, push-pull, @1300 RPM
Hard Drives Samsung 840 Pro 256GB SSD for OS, 500GB Seagate Constellation (Enterprise drive) for Data
Internet Speed 48-51Mbs Mbs down, 11 Mbs up Xfinity Cable
Antivirus Norton Internet Security 2013
Browser IE 10, Opera, Pale Moon if needed
Other Info 4 case fans, LG BluRay-RE, ASUS DVD-RW, Mr. Fusion power supply, 1.21 gigawatts.
22 Aug 2011
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#2
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Hello Gary,
Spacing issue fixed.
Did you log off and log on, or restart the computer after merging the disable REG download?
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My System Specs |
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Computer type PC/Desktop
System Manufacturer/Model Number Self built custom
OS 64-bit Windows 10 Pro
CPU Intel i7-8700K OC'd to 5 GHz
Motherboard ASUS Maximus X Code Z370
Memory 16 GB (8GBx2) G.SKILL TridentZ DDR4 3200 MHz
Graphics Card ASUS ROG-STRIX-GTX1080TI-O11G-GAMING
Sound Card Integrated
Monitor(s) Displays 3 x 27" Asus VE278Q
Screen Resolution 1920x1080
Keyboard Logitech wireless K800
Mouse Logitech MX Master
PSU Seasonic Prime Titanium 850W
Case Corsair Air 740
Cooling Corsair Hydro H115i
Hard Drives 250GB Samsung 960 EVO M.2
256GB OCZ Vector
6TB WD Black WD6001FZWX
Internet Speed 300 Mb/s Download and 30 Mb/s Upload
Antivirus Malwarebyte Anti-Malware Premium
Browser Google Chrome
Other Info Logitech Z625 speaker system
* Creative F200 webcam
* Lite-On iHBS212 12x BD Writer
* Samsung CLX-3175FW Printer
* Linksys EA9500 Router
* Arris SB6190 Cable Modem
* APC SMART-UPS RT 1000 XL
22 Aug 2011
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#3
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Well, no I didn't.  It works now, got in a big hurry. Page looks fine now too. Thanks!
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My System Specs |
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Computer type PC/Desktop
System Manufacturer/Model Number Home Built Desktop By DataTech
OS Windows 7 Ultimate X64 SP1
CPU Intel i5-2550K, Differing ~4.4-4.8GHz No built in GPU
Motherboard ASUS P8Z68-V PRO/GEN3
Memory 16GB G.Skill Sniper 1866MHz @ 2133MHz 2x8GB
Graphics Card ASUS GTX650TIB-DC2OC-2GD5, (650TI Boost)
Sound Card Onboard Realtek 5-1
Monitor(s) Displays Samsung P2570HD
Screen Resolution 1920x1080
Keyboard E-Z Eyes, bright yellow keys with large characters
Mouse steelseries SENSEI Laser Pro Gaming
PSU Corsair HX650W
Case Inwin Dragon Rider
Cooling Hyper 212 EVO w/two Noctua fans, push-pull, @1300 RPM
Hard Drives Samsung 840 Pro 256GB SSD for OS, 500GB Seagate Constellation (Enterprise drive) for Data
Internet Speed 48-51Mbs Mbs down, 11 Mbs up Xfinity Cable
Antivirus Norton Internet Security 2013
Browser IE 10, Opera, Pale Moon if needed
Other Info 4 case fans, LG BluRay-RE, ASUS DVD-RW, Mr. Fusion power supply, 1.21 gigawatts.
22 Aug 2011
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#4
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LOL, you're most welcome Gary. Thank you.
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My System Specs |
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Computer type PC/Desktop
System Manufacturer/Model Number Self built custom
OS 64-bit Windows 10 Pro
CPU Intel i7-8700K OC'd to 5 GHz
Motherboard ASUS Maximus X Code Z370
Memory 16 GB (8GBx2) G.SKILL TridentZ DDR4 3200 MHz
Graphics Card ASUS ROG-STRIX-GTX1080TI-O11G-GAMING
Sound Card Integrated
Monitor(s) Displays 3 x 27" Asus VE278Q
Screen Resolution 1920x1080
Keyboard Logitech wireless K800
Mouse Logitech MX Master
PSU Seasonic Prime Titanium 850W
Case Corsair Air 740
Cooling Corsair Hydro H115i
Hard Drives 250GB Samsung 960 EVO M.2
256GB OCZ Vector
6TB WD Black WD6001FZWX
Internet Speed 300 Mb/s Download and 30 Mb/s Upload
Antivirus Malwarebyte Anti-Malware Premium
Browser Google Chrome
Other Info Logitech Z625 speaker system
* Creative F200 webcam
* Lite-On iHBS212 12x BD Writer
* Samsung CLX-3175FW Printer
* Linksys EA9500 Router
* Arris SB6190 Cable Modem
* APC SMART-UPS RT 1000 XL
12 Nov 2012
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#5
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Another way is to create an environment variable called SEE_MASK_NOZONECHECKS and give it a value of 1. You can do this from an elevated command prompt: setx SEE_MASK_NOZONECHECKS 1
See next post for information about dangers involved.
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My System Specs |
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12 Nov 2012
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#6
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Hello Cavaldi,
Thank you for another option. I'll add it now.
The only problem with that is the same security risk it poses.
Note Do not use this as a permanent system environment variable because it will disable all Zone Checking.
(see Workaround at link)
The Open File - Security Warning dialog box is displayed when you try to silently install a hotfix or an update by using a Visual Basic script in Windows XP Service Pack 2
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My System Specs |
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Computer type PC/Desktop
System Manufacturer/Model Number Self built custom
OS 64-bit Windows 10 Pro
CPU Intel i7-8700K OC'd to 5 GHz
Motherboard ASUS Maximus X Code Z370
Memory 16 GB (8GBx2) G.SKILL TridentZ DDR4 3200 MHz
Graphics Card ASUS ROG-STRIX-GTX1080TI-O11G-GAMING
Sound Card Integrated
Monitor(s) Displays 3 x 27" Asus VE278Q
Screen Resolution 1920x1080
Keyboard Logitech wireless K800
Mouse Logitech MX Master
PSU Seasonic Prime Titanium 850W
Case Corsair Air 740
Cooling Corsair Hydro H115i
Hard Drives 250GB Samsung 960 EVO M.2
256GB OCZ Vector
6TB WD Black WD6001FZWX
Internet Speed 300 Mb/s Download and 30 Mb/s Upload
Antivirus Malwarebyte Anti-Malware Premium
Browser Google Chrome
Other Info Logitech Z625 speaker system
* Creative F200 webcam
* Lite-On iHBS212 12x BD Writer
* Samsung CLX-3175FW Printer
* Linksys EA9500 Router
* Arris SB6190 Cable Modem
* APC SMART-UPS RT 1000 XL
13 Nov 2012
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#7
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True. If possible, editing the GPO (method 3) to include shortcut files (.lnk) is preferable.
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My System Specs |
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13 Nov 2012
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#8
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Done.
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My System Specs |
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Computer type PC/Desktop
System Manufacturer/Model Number Self built custom
OS 64-bit Windows 10 Pro
CPU Intel i7-8700K OC'd to 5 GHz
Motherboard ASUS Maximus X Code Z370
Memory 16 GB (8GBx2) G.SKILL TridentZ DDR4 3200 MHz
Graphics Card ASUS ROG-STRIX-GTX1080TI-O11G-GAMING
Sound Card Integrated
Monitor(s) Displays 3 x 27" Asus VE278Q
Screen Resolution 1920x1080
Keyboard Logitech wireless K800
Mouse Logitech MX Master
PSU Seasonic Prime Titanium 850W
Case Corsair Air 740
Cooling Corsair Hydro H115i
Hard Drives 250GB Samsung 960 EVO M.2
256GB OCZ Vector
6TB WD Black WD6001FZWX
Internet Speed 300 Mb/s Download and 30 Mb/s Upload
Antivirus Malwarebyte Anti-Malware Premium
Browser Google Chrome
Other Info Logitech Z625 speaker system
* Creative F200 webcam
* Lite-On iHBS212 12x BD Writer
* Samsung CLX-3175FW Printer
* Linksys EA9500 Router
* Arris SB6190 Cable Modem
* APC SMART-UPS RT 1000 XL
09 Mar 2013
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#9
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this broke my computer, now all my browsers when downloading block the downloads and I cant change the security settings.
if the OP worded this better my computer would work, what is zone checking? who knows, all I know is I can no longer download anything since installing something from here must be a virus, all my downloads are blocked.
someone should virus scan these files because they broke my computer.
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My System Specs |
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Computer type PC/Desktop
OS Windows 7 Ultimate x64
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