Older Dell Machines Freezing 5 Minutes After Boot

BlackstoneIT

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There was a post regarding older Dell machines freezing after boot (https://www.technibble.com/forums/threads/anybody-else-seeing-this.95500/)
I'm in the new member probation so can't post a reply there yet, so I thought I'd chance my arm and pop a wee suggestion here. Might save the machines from an e-waste burial.
Could be the "Secure-Boot-Update" task buried under the Platform Initialisation section "Task Scheduler Library\Microsoft\Windows\PI\"
It's triggered 5 minutes after boot and can lock up systems with older TPM chips. Try (quickly) disabling it and see if that resolves.

You can check if it's present with:
schtasks /query /tn "\Microsoft\Windows\PI\Secure-Boot-Update"
 
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