Upgrade Readiness - Additional insights


The Upgrade Readiness and Device Health solutions of Windows Analytics are being retired on January 31, 2020. Get started with Update Compliance will continue to be supported. For more information, see Windows Analytics retirement on January 31, 2020.

This topic provides information on additional features that are available in Upgrade Readiness to provide insights into your environment. These include:

  • Site discovery: An inventory of web sites that are accessed by client computers running Windows 7, Windows 8.1, or Windows 10 using Internet Explorer.
  • Office add-ins: A list of the Microsoft Office add-ins that are installed on client computers.

Site discovery

The IE site discovery feature in Upgrade Readiness provides an inventory of web sites that are accessed by client computers using Internet Explorer on Windows 7, Windows 8.1, and Windows 10. Site discovery does not include sites that are accessed using other Web browsers, such as Microsoft Edge. Site inventory information is provided as optional data related to upgrading to Windows 10 and Internet Explorer 11, and is meant to help prioritize compatibility testing for web applications. You can make more informed decisions about testing based on usage data.


Site discovery data is disabled by default; you can find documentation on what is collected in the Windows 7, Windows 8, and Windows 8.1 appraiser diagnostic data events and fields. After you turn on this feature, data is collected on all sites visited by Internet Explorer, except during InPrivate sessions. The data collection process is silent, without notification to the employee. You are responsible for ensuring that your use of this feature complies with all applicable local laws and regulatory requirements, including any requirements to provide notice to employees.

IE site discovery is disabled on devices running Windows 7 and Windows 8.1 that are in Switzerland and EU countries.

In order to use site discovery, a separate opt-in is required; see Enrolling devices in Windows Analytics.

Review most active sites

This blade indicates the most visited sites by computers in your environment. Review this list to determine which web applications and sites are used most frequently. The number of visits is based on the total number of views, and not by the number of unique devices accessing a page.

For each site, the fully qualified domain name will be listed. You can sort the data by domain name or by URL.

Most active sites

Click the name of any site in the list to drill down into more details about the visits, including the time of each visit and the computer name.

Site domain detail

Review document modes in use

This blade provides information about which document modes are used in the sites that are visited in your environment. Document modes are used to provide compatibility with older versions of Internet Explorer. Sites that use older technologies may require additional testing and are less likely to be compatible with Microsoft Edge. Counts are based on total page views and not the number of unique devices. For more information about document modes, see Deprecated document modes.

Site activity by document mode

You can run predefined queries to capture more info, such as sites that have Enterprise Mode enabled, or the number of unique computers that have visited a site. For example, this query returns the most used ActiveX controls. You can modify and save the predefined queries.

Office add-ins

Office add-ins provides a list of the Microsoft Office add-ins in your environment, and enumerates the computers that have these add-ins installed. This information should not affect the upgrade decision workflow, but can be helpful to an administrator.

Manage Windows upgrades with Upgrade Readiness