I have a acer laptop with a nvidia GeForce 920m Dedicated gpu, and it shuts down randomly mid work. It doesn't seem to shut off when I use my intergrated graphics card and the Dedicated GPU is updated. Here are logs from event viewer.
<Provider Name="Microsoft-Windows-Kernel-Power" Guid="{331C3B3A-2005-44C2-AC5E-77220C37D6B4}" />
<Keywords>0x8000400000000002</Keywords>
<TimeCreated SystemTime="2017-09-08T21:37:03.940506800Z" />
<EventRecordID>12171</EventRecordID>
<Execution ProcessID="4" ThreadID="8" />
<Channel>System</Channel>
<Computer>DESKTOP-SBN5462</Computer>
<Security UserID="S-1-5-18" />
</System>
<Data Name="BugcheckCode">0</Data>
<Data Name="BugcheckParameter1">0x0</Data>
<Data Name="BugcheckParameter2">0x0</Data>
<Data Name="BugcheckParameter3">0x0</Data>
<Data Name="BugcheckParameter4">0x0</Data>
<Data Name="SleepInProgress">0</Data>
<Data Name="PowerButtonTimestamp">0</Data>
<Data Name="BootAppStatus">0</Data>
<Data Name="Checkpoint">0</Data>
<Data Name="ConnectedStandbyInProgress">false</Data>
<Data Name="SystemSleepTransitionsToOn">0</Data>
<Data Name="CsEntryScenarioInstanceId">0</Data>
<Data Name="BugcheckInfoFromEFI">true</Data>
</EventData>
</Event>