W520 waking up from his sleep by himself and to exhaust the battery

Hello.

I had a problem with my sometimes W520.

The problem is, he awakens from his sleep by himself. I run the start > Sleep function in windows and wait for the led around the powerbutton fades in and out. Then a few hours later he apparently awake mode standby (even with the lid closed) and my battery is drained completely to 0%.

Someone knows what may cause this?

Go to a command prompt and type in
powercfg - devicequery wake_armed

It will list the devices that can cause the machine automatically adopt the fashion watches.

Tags: ThinkPad Notebooks

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