Using SCCM or another software solution, verify the output of the following registry keys:
- HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{63AC4523-5F19-42F0-BC43-97C8B5373589}\DisplayVersion
- HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\{63AC4523-5F19-42F0-BC43-97C8B5373589}\InstallDate
The first value will have a version number in the following format: 4.4.0.6
Use this to verify the version of the agent
The second value will have an install date in the following format: 20180610
Use this to verify the installation date of the agent in conjunction with its reported version number
Taken together, it becomes possible to verify if an agent upgrade succeeded or failed as these values would rollback to their previous entries if an installation fails. Note this applies to upgrades mainly; for fresh installs, a separate registry key located in the services directory called ServerSS is useful to determine if the agent checked in to the server after installation.  |