---
sourceDocument: Brazil IT Operations Management
sourceDocumentLink: https://www.servicenow.com/docs/r/it-operations-management

 Release :

    - brazil

ft:locale :

    - en-US

ft:publication_title :

    - Brazil IT Operations Management

ft:clusterId :

    - itom

bundleId :

    - itom

workflow :

    - Technology


---

# Enable uninstall validation during agent upgrade

# Enable uninstall validation during agent upgrade {#ariaid-title1}

Release version: Brazil  
Updated September 10, 2026  
![](https://www.servicenow.com/docs/portal-asset/ico-clock) 1 minute to read  
Configure requiring a maintenance token to uninstall agents during agent upgrade. A maintenance token provides a layer of administrative control so that unauthorized personnel can't perform the uninstall.

## Before you begin

Role required: sn_agent.token_admin

## Procedure

1. Navigate to AllSystem PropertiesAll Properties.
2. Locate the sn_agent.upgrade_enable_uninstall_validation property and set its value to true.  
   If the property does not exist, select New to create it.  
   Note:  
   If uninstall validation is enabled, setting the system property back to false disables the feature on the next version upgrade.

## Result

The property is invoked for both selective upgrade and high volume upgrade, and the uninstall feature is enabled on Windows agents.

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