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This article has not been completed yet. However, it may already contain helpful Information and therefore it has been published at this stage
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It turned out that uninstalling Azure Arc from the server and reinstalling it, is not sufficient. A new onboarding of the AMA (Azure Monitorig Agent) extension fails and no information (heartbeats & logging informations (events)) arrives in the cloud.
Azure Arc’s uninstall leaves a pile of old files on your computer which then stifles a new deployment. We needed to not only uninstall Azure Arc via "Programs and Features", but also to manually delete any of these folders that still exist after the uninstall.
C:\Packages\
C:\Resources\
C:\Program Files\AzureConnectedMachine\
C:\Program Data\AzureConnectedMachineAgent\
C:\Program Data\GuestConfig\
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❕INFO: In the "Packages" folder you may also find other plugins 👇 that you may not want to delete (such as things that belong to an MDE implementation). Therefore, caution is advised and this folder should be examined more closely in advance.
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You will likely have to end some tasks as well.... 👇
AMAExtHealthMonitor.exe
MonAgentCore.exe
MonAgentHost.exe
MonAgentLauncher.exe
MonAgentManager.exe
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I found that a reboot is not required after the install, uninstall, or reinstall, which made working on a live production systems much easier.
Below you will find a link 👇 to one of my blog posts on how to reinstall the Arc Agent (Azure Connected Machine Agent).
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Reference:
SOLVED: How To Properly Reinstall Azure Connected Machine Agent / Azure Arc Sentinel Agent
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