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by edb_123 1490 days ago
I have had this issue with Thinkpads as well. The solution was to make sure to unplug the AC power adapter before putting it to sleep and putting it in my bag. Else it would go to sleep thinking that it's still on AC power, and happily wake itself up to install updates while in my bag. If power was disconnected after putting it to sleep, it would not be able to know it was on battery power.