Upgrade agent failed

T.Lee056969 — Wed, 10 Jul 2024 07:54:29 GMT

I have encountered the following issue of failed agent upgrade on a Windows laptop, showing the following message:

XDR Agent failed to upgrade from version 8.4.0.51691 to version 8.5.0.624 on LAPTOP-xxxxxxx with error: Windows Installer DB: Current agent registration is missing.

Anyone has experienced this as well? How can I solve the issue and upgrade the agent?

Re: Upgrade agent failed

aspatil — Wed, 10 Jul 2024 13:33:50 GMT

Hello @T.Lee056969

There could be the reason that Distribution ID is missing from installation package.

The easiest way to see if Cortex XDR is registered, is to look at the "InstallerMachine.reg" file inside the agent tech support file and search for "Cortex XDR".

The only workaround solution for the affected machine is running the Cortex XDR Cleaner tool to remove the old agent and reinstall the Cortex XDR agent.

Please note that this is an assumption and basic troubleshooting which you can try. Please feel free to open TAC support case to get the RCA.

If you feel this has answered your query, please let us know by clicking on Like and "mark this as a Solution".

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Upgrade agent failed

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