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What would cause an almost new Dell laptop to shut down with no warning at all?

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Sudden, no-warning shutdowns after Windows finishes booting can be caused by a small set of hardware and software issues. Build on the thread: check power delivery and battery health, gather Windows error logs, isolate the OS from hardware, and run low-level hardware checks. Below are concise, actionable triage steps that add detail to suggestions from , and .

Start in Windows: open Reliability Monitor (perfmon /rel) and the System log in Event Viewer. Look for entries like Kernel-Power (Event ID 41) or unexpected shutdown entries (Event ID 6008) at the shutdown time. Create a battery health report with powercfg /batteryreport and run the Windows Memory Diagnostic with mdsched.exe. Run sfc /scannow if corruption is suspected.

Isolate hardware: try running the machine on AC only (remove the battery if possible) and see if the shutdown repeats. Boot from a clean external environment (Linux live USB or Windows install media) as suggested in spirit — if the machine still dies outside Windows, the cause is likely hardware. Run memory and disk diagnostics (MemTest86 and SMART checks) and use the vendor pre-boot diagnostics (Dell diagnostics via the boot menu) to capture errors.

If overheating is suspected, check vents and fans for dust and listen for fan behavior during load. If the laptop is nearly new, do not open it if warranty applies; collect the service tag and diagnostic logs and contact Dell support. If malware is a concern, run an offline rescue scan as noted. Recording exact timestamps and Event IDs will speed troubleshooting with tech support.

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Member Avatar for Majestics

Is it shuting down during booting process or after boot? Can be battery problem.

Member Avatar for Trek2m

It could also be caused by a virus

Member Avatar for caperjack

It is after boot.

try hitting f8 on bootup and see if it will work in safe mode

how long after boot ,does it work and are you able to use for a time before it suts down ,or does it just boot and shut down .

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