Use Office Client KMS activation diagnostic or Office KMS Host Activation diagnostic tool to troubleshoot KMS issues

To quickly identify your KMS trouble spots, use either the Office Client KMS activation diagnostic or Office KMS Host Activation diagnostic tool to analyze your environment for known issues. These diagnostic tools automate almost all of the troubleshooting steps available for KMS issues and provide a detailed report with recommendations on how to fix the detected issues.

You should always analyze the client first by using the Office Client KMS activation diagnostic tool, even if you feel you have a KMS Host configuration problem. It’ll determine if your changes need to occur on the client, your network, or your KMS host.

If the Office Client KMS activation diagnostic tool indicates you have KMS host issues, you should then run the Office KMS Host Activation diagnostic tool.

To use the Office Client KMS activation diagnostic tool

1. As a local administrator, log into any Office client that is unable to activate using KMS activation.
2. Go to Office Client KMS activation diagnostic tool and sign in to the Microsoft Support Diagnostics Self-Help portal with your Microsoft Account credentials.
3. On the New Session page, choose Office Client KMS activation diagnostic.
4. Enter a name in Session Name text box and then chooseCreate.
5. To start the analysis, choose Download.
6. When you are prompted, choose Run or Save File. If you choose Save File, you can later run the file from the folder where you saved it.
7. When prompted to select the computer on which to run the diagnostic, chooseThis Computer, and then choose Next. On the next page chooseStart.
8. When the diagnostic displays an alert indicating a report has been saved, chooseOpen Report.
9. Review the details listed in the report Summary section, and then review the problems listed in theIssues Detected section and follow the recommendations provided underRecommended steps and related resources.

To use the Office KMS Host Activation diagnostic tool

1. As a local administrator, log into your Office KMS host computer.
2. Go to Office KMS Host Activation diagnostic tool and sign in to the Microsoft Support Diagnostics Self-Help portal with your Microsoft Account credentials.
3. On the New Session page, choose Office Client KMS Host Activation diagnostic.
4. Enter a name in Session Name text box and then chooseCreate.
5. To start the analysis, choose Download.
6. When you are prompted, choose Run or Save File. If you choose Save File, you can later run the file from the folder where you saved it.
7. When prompted to select the computer on which to run the diagnostic, chooseThis Computer, and then choose Next. On the next page chooseStart.
8. A report is automatically generated and opened in your browser.
9. Review the information listed in the Summary section and then review the problems listed in theDetails section. Follow the recommendations provided under Action needed or comment for the items flagged with ‘Attention Required’ in the Result column

Judy Zhou
TechNet Community Support