# MDM - App is already installed

## Problem

User is trying to install an App and receives the error message "App already installed".

## Cause

Users will get this error message if the same App is already installed by the user. If the App is installed by the user, might be the same version or different version, then Endpoint Central will not be able to install the App again in the mobile device.

## Resolution

Ensure that you inform the user to manually uninstall the previous installation of the App from the device before trying to install it again using Endpoint Central.

**Applies to:** App Store, App Repository, Mobile Device Management

**Keywords:** MDM, App Store, Mobile Device, Device Enrollment.

## Other Resources and Support

| Other KB articles | 24/5 Support |
|---|---|
| - [Agent Installation](https://www.manageengine.com/products/desktop-central/knowledge-base.html#agent-installation)<br>- [Configurations](https://www.manageengine.com/products/desktop-central/knowledge-base.html#windows-configurations)<br>- [Inventory Management](https://www.manageengine.com/products/desktop-central/knowledge-base.html#inventory-management)<br>- [Patch Management](https://www.manageengine.com/products/desktop-central/knowledge-base.html#patch-management)<br>- [Software Distribution](https://www.manageengine.com/products/desktop-central/knowledge-base.html#software-distribution)<br>- [Service Pack Installation](https://www.manageengine.com/products/desktop-central/knowledge-base.html#service-pack-installation)<br>- [Desktop Sharing](https://www.manageengine.com/products/desktop-central/knowledge-base.html#remote-desktop-sharing)<br>- [Active Directory Reports](https://www.manageengine.com/products/desktop-central/knowledge-base.html#active-directory-reports)<br>- [User Logon Reports](https://www.manageengine.com/products/desktop-central/knowledge-base.html#user-logon-reports)<br>- [Endpoint Central SP Upgrade](https://www.manageengine.com/products/desktop-central/knowledge-base.html#service-pack-upgrade)<br>- [Miscellaneous](https://www.manageengine.com/products/desktop-central/knowledge-base.html#miscellaneous)<br><br>[» More](https://www.manageengine.com/products/desktop-central/knowledge-base.html) | Support will be available 24hrs a day and five days a week (Monday through Friday), excluding USA & India public holidays.<br><br>Tel : +1-888-720-9500<br>Email : [desktopcentral-support@manageengine.com](mailto:desktopcentral-support@manageengine.com)<br><br>**Speak to us**<br><br>- Join the Endpoint Central Community to get instant answers for your queries, register with our [Forum](http://forums.manageengine.com/Desktop-Central).<br>- Look out for the latest happenings in Desktop Management, follow our Tweets on [Twitter](http://twitter.com/DesktopCentral).<br>- Get to know the latest updates and Best Practices in Desktop Management through our [Blog](http://blogs.manageengine.com/desktopcentral/index.html). |

[Mobile Device Management - Knowledge Base](https://www.manageengine.com/products/desktop-central/knowledge-base.html#mobile-device-management)