How to bypass, "This app has been blocked for your protection" in Windows 10. Windows 10 can block apps from unknown publishers using user account control, UAC, or Windows Defender SmartScreen. In some cases, legitimate apps may be mistakenly flagged, and if the source is trusted, users can choose to override the warning. Before we begin, be sure to subscribe to Ninja One's IT video hub and our YouTube channel for more tech content like this. Why does Windows block certain apps? Windows blocks apps that lack verified permissions, digital signatures, or come from unknown publishers to help prevent malware and system threats. That said, you should only bypass these warnings if you're absolutely certain the app is from a trusted source. Never proceed with unexpected or unverified downloads to stay secure. How to bypass, "This app has been blocked for your protection." You can bypass this error using four safe methods: File Explorer, Command Prompt, PowerShell, and GUI in Windows 10. Keep in mind, however, that all of these methods require administrator access. Four methods for bypassing app security. You can use Command Prompt to run the app as an administrator. You can use File Properties to manually remove restrictions under the file's properties. You can disable SmartScreen to allow blocked apps to run, but doing so will affect your system's defenses. You can adjust local group policy to bypass UAC restrictions, but this method is more suited for IT administrators who need to keep their network secure. Each of the methods above involves several specific steps to safely bypass Windows security restrictions, depending on your setup and comfort level. Bonus: Running an app on compatibility mode. If the app still won't run, try using compatibility mode. This is especially useful for older programs. Here's how. Right-click the apps .EXE file and select Properties. Go to the Compatibility tab. Check, "Run this program in compatibility mode for," then pick the appropriate Windows version. Click Apply, then OK, and relaunch the app. Windows uses SmartScreen and UAC to block potentially unsafe apps, but trusted ones can be allowed. However, bypassing this protection should only be done if you fully trust the app's source. For more information, check out our official blog post on how to bypass the, "This app has been blocked for your protection" in Windows 10 linked in the description below.