A laptop that shuts down without warning is trying to protect itself — most often from heat, but sometimes from a power or battery fault. Here's how to find the cause.
Most Common Causes- Overheating — the #1 cause. Dust-clogged fans and old thermal paste make the CPU hit its safety limit and cut power.
- Failing battery — a worn battery can cause sudden shutdowns when unplugged.
- Faulty charger / loose DC jack — power drops mid-use.
- RAM or storage errors — can trigger crashes and restarts.
- Monitor temperatures with a free tool — shutdowns at 95–100°C confirm overheating.
- Does it only shut down on battery? The battery is the likely culprit.
- Only when moved/nudged? Suspect the DC jack or a loose connection.
- Run Windows Memory Diagnostic and check the drive's health (S.M.A.R.T.).
Start with a professional clean + thermal repaste to rule out overheating (the most likely cause) — it typically drops temps 10–20°C. If it shuts down only on battery, the battery needs replacing; if it's the DC jack, that's a chip-level repair. A diagnostic pinpoints heat, power, or a component fault before you spend.
Need a Professional to Handle It?Prefer an expert? Xigox offers professional laptop repair in Mumbai with a free diagnostic and a fixed quote before any work — genuine parts, a 90-day warranty and free doorstep pickup across Mumbai, Thane & Palghar.
- 📞 Call: +91 74997 61196 (9 AM – 9 PM, all 7 days)
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