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Windows 7: USB power events (event viewer) - Flash vs. portable

08 Jan 2012   #1

USB power events (event viewer) - Flash vs. portable

Just an aside as I use Task Scheduler for certain things.

I have a task scheduler to be triggered by a USB insertion event (a PnP power event with event IDs between 2100-2109). Plug in a USB flash/thumb drive and I get a message popup.

I never had a portable USB drive until a few weeks ago. Well, I plugged it in for the first time yesterday and NO USB power events in the log (2100-2109). It's being supplied power by the USB ports as it has no A/C adaptor.

Weird. You'd think any USB non-powered device would be treated the same....

My System SpecsSystem Spec


 USB power events (event viewer) - Flash vs. portable

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