If you can"t open any file in Windows 10 due to "Your Internet security settings prevented one or more files from being opened" warning, here"s how lớn fix.

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When you open a file in Windows, a security identifier stored in tệp tin properties when it is being saved, checks its integrity. If the security identifier found the file harmful, it immediately blocks & the tệp tin can’t be opened at all. Well, its a quite old story, but yet it is true today even for Windows 10.

Recently, while opening a tệp tin downloaded from the Internet using Internet Explorer (IE), we got following warning message:

These files can’t be openedYour Internet security settings prevented one or more files from being opened.


But the file we’re were trying to lớn open wasn’t harmful & we were quite sure about it. So how lớn fix this and tell Windows that the file is safe to lớn open! If you’re also having this problem, this post is for you. The root cause for this issue may be incorrectly configured Launching applications và unsafe file security setting. If you remix this setting lớn its default configuration, this issue gets resolved.

FIX : Your Internet Security Settings Prevented One Or More Files From Being Opened In Windows 10

FIX 1 – Using Internet Properties

1. Press

 + R và type inetcpl.cpl in the Run dialog box, lớn open Internet Properties.



Xem thêm:

Next, in Internet Properties window, switch to Security tab. Cliông chồng on the Custom level button there.


3. Next, in Security Settings – Internet Zone window shown below, scroll down & look for Launching applications và unsafe files setting. The setting might be mix to Disable and this is the root cause of this issue. Set it to lớn Prompt (recommended) option & clichồng OK, Apply, OK.


4. Finally, reboot the machine & after restart, you should be able to lớn open the tệp tin without any warning message.

FIX 2 – Remix IE/Microsoft Edge Settings To Default

If steps mentioned in FIX 1 doesn’t helps, you can try resetting IE to its default configuration. Following article will help you how to do this:

Learn how lớn remix IE khổng lồ mặc định settings in Windows

If you’re using Microsoft Edge, you can remix it using this guide:

Learn how to remix Microsoft Edge to lớn default settings in Windows

We hope resetting IE will fix this and other issues (if any) at once. After IE remix, reboot once và try opening same tệp tin, it should work this time.

Let us know if issue still persists, via your comments!


Kapil is presently a Microsoft MVPhường in Windows IT Pro expertise. He is Windows Insider MVP as well, & author of "Windows Group Policy Troubleshooting" book. In năm ngoái, Microsoft India accomplished hyên ổn as "Windows 10 Champion". Being passionate Windows blogger, he loves khổng lồ help others on fixing their system issues. You can follow him for news/updates và fixes for Windows.