Sophos error 1721 is encountered while performing the product installation, upgrade, or uninstallation process. As a result of this error, the Sophos product remains uninstalled, and the error message Uninstall Failed will be displayed on your computer screen. Sometimes, the Sophos error code 1721 is also related to the Run time issues. Perform these troubleshooting methods to solve the error 1721 on your Windows system.
Steps to solve the Sophos error-1721 occurred while installing, upgrading, or uninstalling the Sophos antivirus product
Solution 1: Close the Conflicting Programs present on your Windows computer
The conflicting programs present on your Windows computer may also cause the Sophos error 1721. To close the conflicting programs, follow the instructions given below.
Solution 2: Update or reinstall the Conflicting Programs
Using your Windows computer’s Control Panel wizard
Solution 3: Update the antivirus software and your computer’s OS
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