How to Install 3rd Party Apps on Windows 11: A Step-by-Step Guide

By / September 17, 2025

If you’ve recently upgraded to Windows 11, you might have noticed that installing apps isn’t quite the same as it used to be. By default, Microsoft prefers you to download apps from the Microsoft Store, but sometimes you’ll need or want to install software from outside sources — also known as third-party apps.

In this guide, we’ll walk you through how to install 3rd party apps on Windows 11, step by step. Whether you’re installing a productivity tool, a game, or a utility that isn’t available in the Store, this tutorial has you covered.

Key Takeaways

  • Windows 11 blocks third-party apps by default for security reasons.

  • You can enable installations from outside the Microsoft Store in Settings.

  • The process involves changing app installation permissions, downloading the installer, and running it safely.

  • Always make sure to download apps from trusted sources to avoid malware.

Why Does Windows 11 Restrict 3rd Party Apps by Default?

Microsoft designed Windows 11 with a security-first approach. Allowing apps only from the Microsoft Store helps:

  • Protect against malware and unverified software.

  • Ensure apps are compatible with your PC.

  • Keep your system stable with tested applications.

But here’s the catch: many useful apps aren’t listed in the Store. That’s where third-party app installations come in handy.

What Are 3rd Party Apps in Windows 11?

Third-party apps are simply applications not downloaded from the Microsoft Store. Examples include:

  • Google Chrome, Mozilla Firefox, or Brave Browser.

  • Zoom or Skype desktop versions.

  • Adobe Photoshop, GIMP, or Krita.

  • Games like Steam or Epic Games Launcher.

These apps often offer more features, flexibility, and updates than Store-only alternatives.

Is It Safe to Install 3rd Party Apps on Windows 11?

Yes — but only if you’re careful. To stay safe:

  • Download from official websites (e.g., chrome.google.com, zoom.us).

  • Avoid shady download sites or torrents.

  • Use antivirus protection to scan new downloads.

  • Check that the app is digitally signed by the developer.

Think of it like buying food: the Microsoft Store is like a supermarket where everything is vetted, but third-party apps are like shopping at local markets — safe, if you know where to look.

Step-by-Step Guide: How to Install 3rd Party Apps on Windows 11

Here’s the detailed process you can follow:

Step 1: Open Windows Settings

  1. Click the Start Menu (Windows icon).

  2. Select Settings (gear icon).

Or simply press Win + I to open Settings directly.

Step 2: Navigate to App Installation Settings

  1. In the Settings sidebar, click Apps.

  2. Select Advanced app settings.

  3. Choose Choose where to get apps.

Step 3: Change App Installation Permissions

By default, it might say “The Microsoft Store only.”

  1. Click the dropdown menu.

  2. Select “Anywhere” or “Anywhere, but let me know if there’s a comparable app in the Microsoft Store.”

This change allows you to install apps from outside sources.

Step 4: Download the App Installer

  • Go to the official website of the app you want.

  • Find the Download button for Windows 11 or Windows 10.

  • Save the file — usually .exe or .msi format.

📌 Example: If you want Google Chrome, go to google.com/chrome and click Download Chrome.

Step 5: Run the Installer

  1. Locate the downloaded file (check your Downloads folder).

  2. Double-click the installer.

  3. If prompted by User Account Control (UAC), click Yes to allow the installation.

Step 6: Follow On-Screen Instructions

  • Most installers provide a Setup Wizard.

  • Click Next, accept the License Agreement, and choose Install location (or leave it as default).

  • Wait for the installation to complete.

Step 7: Launch the Installed App

Once the installation finishes:

  • Click Finish or Launch App.

  • The app should now appear in your Start Menu or on the Desktop.

Congratulations — you’ve installed your first third-party app on Windows 11! 🎉

How to Enable “Install Apps from Anywhere” in Windows 11

For quicker reference, here’s a summary table of the process:

Step Action Where to Go
1 Open Settings Start Menu → Settings (Win + I)
2 Go to Apps Sidebar → Apps
3 Enable Anywhere Advanced app settings → Choose where to get apps
4 Download Installer Official website of the app
5 Run Setup Double-click .exe / .msi
6 Follow Wizard Accept license → Install
7 Launch App Start Menu / Desktop

Common Issues When Installing 3rd Party Apps (and Fixes)

1. Installer Won’t Run

  • Fix: Right-click the installer → Run as administrator.

2. “App Has Been Blocked for Your Protection”

  • Fix: Check if the app is from a trusted source.

  • Disable SmartScreen temporarily under Windows Security (not recommended unless sure).

3. Antivirus Blocks the App

  • Fix: If it’s a false positive, whitelist the app in your antivirus.

4. Incompatible App

  • Fix: Try running the app in Compatibility Mode (Right-click → Properties → Compatibility tab).

Advanced Tips for Installing 3rd Party Apps Safely

  • Check Digital Signatures → Right-click installer → Properties → Digital Signatures tab.

  • Keep Windows Updated → Helps avoid driver/software conflicts.

  • Use Portable Apps → Some apps don’t need installation (e.g., Portable Firefox).

  • Create a Restore Point before installing unfamiliar software.

Why Use 3rd Party Apps on Windows 11?

Some apps simply work better outside the Microsoft Store. Benefits include:

  • More frequent updates from developers.

  • Advanced features not available in Store versions.

  • Custom installation options (install on a specific drive, etc.).

  • Access to popular software ecosystems (Steam, Epic Games).

Windows 11 vs Windows 10: What Changed for 3rd Party Apps?

Feature Windows 10 Windows 11
Default App Source Anywhere Microsoft Store only
App Settings Easier access More restrictive
Security Prompts Less frequent Stricter UAC + SmartScreen
Compatibility Broader Some legacy apps limited

Should You Always Install 3rd Party Apps?

Not necessarily. Ask yourself:

  • Do I really need this app?

  • Is it from a trusted developer?

  • Could the Microsoft Store version work instead?

When in doubt, stick with official Store apps.

Conclusion

Learning how to install 3rd party apps on Windows 11 is essential for unlocking the full potential of your PC. With a few setting tweaks, you can install apps from trusted external sources and enjoy more flexibility.

Remember:

  • Change installation permissions in Settings.

  • Always download from official websites.

  • Run installers carefully and check security prompts.

By following these steps, you’ll be able to install and enjoy your favorite apps while keeping your Windows 11 device safe.

FAQs: Installing 3rd Party Apps on Windows 11

1. Can I install APK files (Android apps) on Windows 11?
Yes, but you’ll need to enable the Windows Subsystem for Android and use the Amazon Appstore or sideload APKs with tools.

2. Why does Windows 11 block apps from outside the Microsoft Store?
It’s a security measure to reduce malware risks and keep your PC safe.

3. Do I need admin rights to install third-party apps?
Yes, most installations require administrator privileges.

4. Can I uninstall 3rd party apps later?
Absolutely. Go to Settings → Apps → Installed apps, then click Uninstall.

5. What’s the safest way to get 3rd party apps?
Download directly from the developer’s official website or trusted distributors like GitHub.

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