---
title: "How do I fix the app not installed error on an Android?"  
description: "How do I fix the app not installed error on an Android?"  
author: "Lily Chitlangiya"  
published: 2021-12-10  
canonical: https://answers.mindstick.com/qa/94436/how-do-i-fix-the-app-not-installed-error-on-an-android  
category: "troubleshooting"  
tags: ["android", "troubleshooting"]  
reading_time: 1 minute  

---

# How do I fix the app not installed error on an Android?

How do I [fix](https://yourviews.mindstick.com/view/81628/how-to-fix-your-broken-heart-try-out-these-ways-for-sure) the [app not installed](https://answers.mindstick.com/qa/94418/how-can-i-install-some-apk-files-which-shows-app-not-installed-when-i-installed-normally) [error](https://www.mindstick.com/forum/459/iis-7-error-503-service-unavailable) on an [Android](https://www.mindstick.com/articles/1672/android-internals)?

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## Answers

### Answer by Hitesh Vohra

**An application that isn't signed** Unsigned apps are those that **aren't available on the Play Store**. Every device bans the installation of unsigned programs downloaded from third-party sources by default for security reasons. Even if unsigned apps are prohibited by default, you can **install them on your device.** \
Fixing this issue entails the following steps:

1. Navigate to **Settings>Lock Screen and Security** to install third-party apps on your device.
2. **Unknown Sources** should be enabled.
3. You can now **install the program.**


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Original Source: https://answers.mindstick.com/qa/94436/how-do-i-fix-the-app-not-installed-error-on-an-android

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