windows-itpro-docs/mdop/appv-v4/how-to-upgrade-the-application-virtualization-sequencer.md
2019-05-30 09:44:34 -03:00

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---
title: How to Upgrade the Application Virtualization Sequencer
description: How to Upgrade the Application Virtualization Sequencer
author: eavena
ms.assetid: 7f85f140-5034-4227-85ef-81f205e722ef
ms.reviewer:
manager: dansimp
ms.author: eravena
ms.pagetype: mdop, appcompat, virtualization
ms.mktglfcycl: deploy
ms.sitesec: library
ms.prod: w8
ms.date: 06/16/2016
---
# How to Upgrade the Application Virtualization Sequencer
Upgrading from previous versions of the Sequencer is not supported. You must uninstall any previous versions of the Sequencer and then install Microsoft Application Virtualization Sequencer 4.5. However, Virtual applications created using an earlier version of the Sequencer can be opened and edited using Sequencer 4.5.
**To upgrade the Sequencer on computers running Windows Vista**
1. To uninstall previous installations of the Sequencer, open Control Panel and select **Programs and Features**. Select the older version from the list, and then click **Uninstall**. To confirm the uninstall, click **Yes** in the **Programs and Features** dialog box.
2. After you have completed uninstalling the previous Sequencer version, install Application Virtualization Sequencer 4.5. For more information about installing Sequencer 4.5, see [How to Install the Application Virtualization Sequencer](how-to-install-the-application-virtualization-sequencer.md).
**To upgrade the Sequencer on computers running Windows XP**
1. To uninstall previous installations of the Sequencer, open Control Panel and select **Add or Remove Programs**. Select the older version from the list, and then click **Remove**. To confirm the uninstall, click **Yes** in the **Add or Remove Programs** dialog box.
2. After you have completed uninstalling the previous Sequencer version, install Application Virtualization Sequencer 4.5. For more information about installing Sequencer 4.5, see [How to Install the Application Virtualization Sequencer](how-to-install-the-application-virtualization-sequencer.md).
## Related topics
[Application Virtualization Deployment and Upgrade Considerations](application-virtualization-deployment-and-upgrade-considerations.md)