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What causes this error? And how can I fix it??

Thanks.

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A "previous shutdown due to thermal event" means firmware or the OS stopped the machine because internal temperatures reached a preset critical value. and were right to point at hardware causes; below is a compact diagnostic path and practical fixes that go beyond a basic "check the fans" suggestion.

Start by confirming the timeline and symptoms in software: open Event Viewer (Start -> Run -> eventvwr.msc -> Windows Logs -> System) and inspect entries at the shutdown time (look for unexpected-shutdown or power/thermal-related records such as Event ID 6008 or Kernel‑Power 41). Use a hardware-monitoring tool (HWMonitor, Core Temp, Open Hardware Monitor or the OEM utility) to log idle and load temperatures so there is data rather than guesswork. Compare measured values to the CPU/GPU vendor TJmax (many CPUs approach critical in the 90–105 C range).

If temps are high, focus on heat transfer and sensor accuracy rather than only moving parts. Verify heatsink seating and retention pressure, remove old thermal compound and reapply quality thermal paste, confirm contact for GPU/northbridge VRM heatsinks, and ensure heat pipes/air channels in laptops are intact. Be cautious with laptop disassembly (warranty, delicate connectors). For boards that look electrically damaged, do not power them up — visible bulging or leakage requires repair.

After mechanical work, update BIOS/UEFI and chipset drivers (these can fix fan-control and sensor reporting). Run a controlled stress test while logging temps and stop immediately if temperatures climb toward unsafe limits. Persistent thermal shutdowns despite correct temps and solid cooling usually indicate a failing sensor, fan controller, PSU, or motherboard component and should be repaired or replaced by a qualified technician.

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Member Avatar for Laser

Check that the fans in your computer case are working and free of dust bunnies. You may need to enter the BIOS setup to reset the error.

What causes this error? And how can I fix it??

Thanks.

Member Avatar for nanosani

You should also check for the capacitors on your motherboard ... see if they are alright ... most probably your system fan is not working or some capacitors have burst ..

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