This time, we will introduce a solution for when you try to run a downloaded application on Windows 10 or Windows 11 and the message "Windows protected your PC" appears and the application cannot be run.
This is because the reputation-based protection feature of Microsoft Defender (Windows Defender), a Windows security feature that comes installed by default in Windows, is enabled.
Reputation-based protection helps protect your device from potentially malicious or unwanted apps, files, and websites.
If the reputation-based protection feature "Check apps and files" is enabled, when you run any of the files listed above, a screen will appear saying "Windows protected your PC" and the file will be prevented from running.
Even non-malicious applications may be blocked, so use your own judgment and only disable "Check apps and files" in the reputation-based protection section if you are sure there is no problem.
How to bypass Reputation-Based Protection's "Check apps and files"
1. Run from the "Windows Protected" screen
1. Click "More info" on the "Windows protected you" screen.
2. Click the "Run" button below to run the file.
If you do this, the "Windows Protected" message will no longer appear.
2. Allow file blocking in file properties
1. Right-click the downloaded file and click "Properties."
2. The properties window will open. Check "Allow" next to "This file comes from another computer. Access to this file might be blocked to help protect this computer." and click OK.
If you allow the file to be blocked, the "Protected by Windows" message will no longer appear.
Steps to grant permission for all files in a folder at once
If you have many blocked files in a folder and it's difficult to open the properties of each one and grant permission, you can use PowerShell commands to grant permission to all of them at once.
Windows standard features (Expand AllWhen decompressing a file using [a specific method/tool], blocks remain in the files within the compressed file (such as a ZIP file) even if blocking of the compressed file itself is permitted. It is unclear whether this is by design or a bug.
1. Open the folder containing the files you want to block.
2. Right-click in an empty area of the folder and click "Open in Terminal." (If using Windows 10, hold down the Shift key while right-clicking and click "Open PowerShell window here.")
3. Copy and paste the following command, then press Enter to execute it.
Get-ChildItem -Recurse | Unblock-File
4. Close Windows PowerShell by clicking the × button in the upper right corner.
The -Recurse option in the command is used to process everything at once, including the contents of subfolders. By executing this, you can instantly allow blocking of all files in a folder.
Disable the "Verify apps and files" feature of reputation-based protection
If you disable the "Check apps and files" feature of reputation-based protection itself, you will not be warned when you run a malicious file.
If you do not have any other security software installed, we do not recommend disabling it.
1.Task tray (notification area)Click the Windows Security icon to open Windows Security.
2. When Windows Security opens, click "App and browser control"Click.
3. Under Reputation-Based Protection, click Reputation-Based Protection Settings.
4. "Check apps and files" is set to "On", so click it to turn it "Off".
5. At this time, the User Account Control screen may appear, so click "Yes".
Now that "Verify apps and files" is turned off, you will be able to run applications without seeing the message "Protected by Windows" when you run them.
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