Member Avatar for peeky

i purchased new 1/2012 rarely used it all this time maybe 20-30 times [used older dell] but love the speed this one gives.
went to turn it on it shut off done it a few times, battery fully charged & charging while plugged in, plug outlet etc all fine
have the meter on screen bigger meter can be 4% i've seen it go to 28% smaller meter stays about 30's not certain its over heating...like i said rarely used so even if it got dusty sitting it wasn't drawing in any.

was on facebook when it happened yet another time twitter accessing emails....thought perhaps hackers? virus? space aliens???? whats going on?

warranty was up in jan & i just made my last payment in july on it....surprised it worked today tried it 3 times last evening kept shutting down with start up not past toshiba logo

thanks

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Dani AI

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Given the intermittent shutdowns and the report that the machine sometimes fails to get past the Toshiba logo, hardware or power-delivery issues are more likely than a malware/Windows-only problem. has already checked charging and run antivirus/antimalware scans, and covered the obvious battery/scan checks, so the following focuses on boot-level and hardware diagnostics that weren't mentioned earlier.

  • Back up any important files immediately while the laptop is able to boot. Intermittent failures can get worse quickly.
  • Observe what happens at power-on: do fans spin, are there HDD/LED activity flashes, any beeps? No fan/LED activity with an immediate power-off points toward the DC jack, adapter, or motherboard power circuitry.
  • Try a clean, OS-independent test: boot from a Linux live USB. If it shuts down at the same point outside Windows, that isolates it to hardware.
  • Memory and storage checks: reseat RAM sticks and boot with a single stick at a time; run Memtest86 from USB if possible. Check drive SMART status (CrystalDiskInfo or a bootable SMART tool) for early failure.
  • If Windows will start, inspect Event Viewer (System log) for unexpected-shutdown events (Kernel-Power) and run these from an elevated prompt:
sfc /scannow
chkdsk C: /f /r

Check the AC adapter and DC jack for wobble, heat, or intermittent contact; if comfortable, verify the adapter output with a multimeter against the label. Look in BIOS/UEFI for hardware-monitor readings (fan speed, temps). Do not update BIOS unless the power source is stable — a failed BIOS flash will make the laptop irrecoverable.

If none of these isolate the fault, the most likely culprits are the DC jack/power board or failing components on the motherboard; those require shop-level diagnosis. Back up data before attempting any repairs and weigh repair cost against replacement, since the warranty has expired.

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Member Avatar for BigPaw

Never close the 'lid' of a laptop while it is shutting down. Wait until the laptop is completely off before closing it. If you don't do it this way then the laptop will sleep/hibernate instead of completing the shutdown. So, when you turn the laptop on again it will resume the Shutdown process and turn off instead of booting as you would expect.

Now let's test the battery. Fully charge the battery, shut down the laptop, remove the power cable, remove the battery. While the cable is disconnected and the battery is out press the power button. Attach the battery and turn the laptop on. When it finishes booting and has fully loaded Windows, how much battery power is it reporting in terms of percentage and time left?

As you have had this laptop for some time now, you might find it helpful to download Superantispyware and Malwarebytes and give your computer a check over. Is your Antivirus up to date?

Member Avatar for peeky

i have done battery check it chargers it & stays fully charged - i pulled battery & held button - i wait until it shuts off before i use close cover.
it will work 1 day with no problems then next day it won't stay turned on at all maybe 2 days later it'll work
i have nod32 its ran scans found nothing i have spybot they find some cookies that are susupicious but nothing else

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