How to: Uninstall 3rd Party Extensions

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Third party extensions can provide some very useful additional functionality to ArcMap, but are not supported because they have not been written by Esri Inc. If ArcMap is not performing correctly, it may be necessary to remove/ uninstall third party extensions to see if this resolves the issue.
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ArcGIS for Desktop Offline authorisation - saving the authorize.txt file

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Some customers have found that when performing the ArcGIS for Desktop offline authorization process, they are unable to save the authorize.txt. This applies to Single Use or Concurrent Use licences. There are some causes of this, which are explained in more detail here.
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Troubleshooting ArcGIS Desktop issues - Getting Started

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Here in the Technical Support team, a large part of our day is spent troubleshooting issues where ArcGIS Desktop is misbehaving. When dealing with these kinds of issues, there are some easy-to-answer questions that you can use to narrow down where the problem is occurring. Over the course of this series of articles, we will be exploring various troubleshooting steps that you can try to resolve your issue, based on the answers to these questions.
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