If you use Windows for long enough, you will see the error This file came from another computer and might be blocked. This error happens when you try to open a file or folder in Windows. If that's the case, follow the below steps to fix the error.
Why Are You Seeing This Error?
You see the “this file came from another computer and might be blocked” error when you try to open a downloaded or transferred file from another computer. For instance, if you receive an email attachment, the file might be blocked because it came from another computer.
When the file is not verified or not originated on your computer, Windows might block the file execution for security concerns.
Now, this doesn’t happen to every file you download or transfer. However, depending on the file type and file origin, Windows automatically triggers the security response. However, false positives can happen. Fortunately, it is easy to unblock the file downloaded from another computer. In fact, Windows even provides proper options to do so. Let me show you how.
Steps to Fix "This File Came From Another Computer and Might Be Blocked" Error
When you download a file from another computer, Windows automatically creates a new security option for that file. You can use this option to unblock the file as and when needed.
1. To do that, find the blocked file, right-click on it and select the Properties option.
2. In the General tab, you will see a new option at the bottom of the window. Select the Unblock checkbox and click on the Apply button.
3. As soon as you click on the Apply button, Windows will unblock the file. The option will disappear too. Click on the Ok button to close the window.
That is it. You’ve unblocked the file downloaded from another computer. From now on, you will not see the “this file came from another computer and might be blocked” error.
As an alternative, you can also use the group policy editor to unblock files. This method is useful if the above method did not work or if are constantly finding yourself unblocking files. Keep in mind that this method might not work for all the file types and origins. However, it should work mostly. Also, this method is only available for Pro and Enterprise users.
1. To open Group Policy Editor, open the run dialog box, type
gpedit.msc and click on the Ok button. You can also search for the same in the start menu.
2. In the group policy editor, you will see a bunch of folders on the left panel. Here, go to the following location.
User Configuration -> Administrative Templates -> Windows Components -> Attachment Manager.
3. On the right panel, find and double-click on the “Do not preserve zone information in file attachments“ policy.
4. Select Enabled in the policy properties window and click on the Apply and Ok buttons to save policy changes.
5. To apply the changed policies, reboot Windows.
That is all. Windows should no longer block files downloaded or transferred from other computers.
As you can see, it is easy to fix this file came from another computer and might be blocked error in Windows. If you are facing permission issues with files or folders, follow the how to fix you currently don’t have permission to access this file error.