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Windows 7 keeps shutting down

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  • Windows 7
  • Safe Mode
Last response: in Windows 7
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March 23, 2013 7:21:20 PM

Having a problem with a Lenovo netbook running W7 32 bit. At random times it will simply shut down and power off with no warning, at first it would run for 20 minutes or so but now it does it before the password is entered at the Windows login screen.

Safe Mode works fine.

Here is what I have tried:
Mains power and battery
Safe Mode with networking (works)
Last Known Good Config
System Restore
Startup Repair
Disabling all network adaptors
Disabling anti-virus
Disabling all non-essential startup applications

Nothing had any effect - any other suggestions before I format and re-install?
Thanks

More about : windows shutting

March 24, 2013 8:42:31 PM

Anyone?
March 27, 2013 9:24:12 PM

Time to find another forum methinks ...
Related resources
a c 238 $ Windows 7
March 28, 2013 5:31:56 AM

Possibly a power supply issue or a loose HSF on the CPU. It could be due to a stuck fan causing overheating. Also, clean your vents. It may be overheating.
March 28, 2013 7:02:38 PM

Thanks for the answer - dont think it is hardware.

I've run Core Temp and it reports 34 degrees, vents are clear, and it happens on mains and battery.
a b $ Windows 7
March 28, 2013 9:14:02 PM

Have you installed the latest drivers from Lenovo? There may be a fix in there somewhere.
March 28, 2013 11:09:29 PM

It could be due to an virus. My Friend has the same problem, as soon as he starts his laptop and enter the password, the laptop automatically restarts. But then i formatted it, scanned with Norton Antivirus immediately at first start, and It detected many viruses and cleaned them up. After that the laptop worked fine.
March 29, 2013 8:40:49 PM

Latest drivers are installed.

Replaced Avast with AVG and scanned, nothing found.

I'm going to format it today ...
!