TMPUMModule is damaged

I just used Migration Assistant to transfer data from my old computer to a new one. I keep getting two error messages and I cannot get rid of them. What do I do with these? "TMPUMModule is damaged and can't be opened" and "DMRManager is damaged and can't be opened"


MacBook Pro (2017 – 2020)

Posted on May 24, 2023 6:09 AM

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Question marked as Top-ranking reply

Posted on May 24, 2023 6:35 AM

carolfromsc wrote:

I just used Migration Assistant to transfer data from my old computer to a new one. I keep getting two error messages and I cannot get rid of them. What do I do with these? "TMPUMModule is damaged and can't be opened" and "DMRManager is damaged and can't be opened"


Uninstall your Third party Anti-virus, it is is not advised:


/Library/Application Support/TrendMicro/PUM/TMPUMModule.app/Contents/MacOS/TMPUMModule Launchd


/Library/Application Support/TrendMicro/DMR/DMRManager.app/Contents/MacOS/DMRManager


If in doubt refer to the developers website; Support/Help/FAQ/known issues/compatibility /updates/uninstall:

Contact a third party vendor

Contact a third-party vendor - Apple Support





Third party AntiVirus is not recommended— it typically does nothing but add issues to the macOS and competes directly with Apple’s own built in security:


macOS - Security - Apple macOS - Security - Apple

Apple Platform Security - Apple Apple Platform Security - Apple Support


Uninstall all third party apps that are Cleaners/Optimizers/Anti-Virus/VPN




1 reply
Question marked as Top-ranking reply

May 24, 2023 6:35 AM in response to carolfromsc

carolfromsc wrote:

I just used Migration Assistant to transfer data from my old computer to a new one. I keep getting two error messages and I cannot get rid of them. What do I do with these? "TMPUMModule is damaged and can't be opened" and "DMRManager is damaged and can't be opened"


Uninstall your Third party Anti-virus, it is is not advised:


/Library/Application Support/TrendMicro/PUM/TMPUMModule.app/Contents/MacOS/TMPUMModule Launchd


/Library/Application Support/TrendMicro/DMR/DMRManager.app/Contents/MacOS/DMRManager


If in doubt refer to the developers website; Support/Help/FAQ/known issues/compatibility /updates/uninstall:

Contact a third party vendor

Contact a third-party vendor - Apple Support





Third party AntiVirus is not recommended— it typically does nothing but add issues to the macOS and competes directly with Apple’s own built in security:


macOS - Security - Apple macOS - Security - Apple

Apple Platform Security - Apple Apple Platform Security - Apple Support


Uninstall all third party apps that are Cleaners/Optimizers/Anti-Virus/VPN




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TMPUMModule is damaged

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