Weird automatic shutdown

[gardedvior411]

Hi, I'm just using my laptop just like what I do everyday, but today, it's acting really weird. At first, it's slow so I restarted it, but it was still the same so again, I restarted it. But this time, when it reached the login screen, it suddenly shuted down. I thought it was just overheating, but when I turned it on again the same thing happened. I only reached up to the login screen.

Things I already done to troubleshoot:
-run into Safe Mode(unsuccessful, just shuts down)
-start repair tool 3 times(unsuccessful)
-system restore from different dates(unsuccessful - there's an error in restoring)
-memory diagnostic(nothing really happened here)


What should I do next? Thanks a lot for your answers!

 

[marsmimar]

Run a full scan with your anti-virus suite. Since no AV is 100% effective 100% of the time I'd also run a couple of free on-demand scans. These are recommended:

Malwarebytes

ESET Online Scanner

If any malware is detected please post back for additional scanning/removal instructions.

If no malware is detected I would next check for damaged or corrupt system files by running a system file checker scan from an elevated command prompt (option two.) If any problems are found, run the scan 3 times and reboot the computer after each scan.

http://www.sevenforums.com/tutorials/1538-sfc-scannow-command-system-file-checker.html

 

[gardedvior411]

Hi. Thanks for your response. How could I run a scan if I coudn't pass in the login screen?

 

[gardedvior411]

There is no error in sfc /scannow. What could be the problem?

 

[marsmimar]

You may have to boot from either the Windows 7 installation DVD to access repair options or from some other "live" disk like Ubuntu, Hiren's BootCD, Ultimate Boot CD, etc. If you don't have a Windows 7 install DVD you can obtain a free, legal copy from Digital River (an official Microsoft download site.) You'll need to download the ISO file of the version of Windows 7 that came with your computer, save it to desktop, then burn it to disk.

Official Windows 7 SP1 ISO from Digital River « My Digital Life

Home | Ubuntu

Hiren's BootCD 15.2 - All in one Bootable CD » www.hiren.info

Ultimate Boot CD - Overview

You might also want to go through these troubleshooting guides prepared by one of the Forum experts.

http://www.sevenforums.com/tutorials/219533-troubleshooting-windows-7-failure-boot.html

http://www.sevenforums.com/tutorials/219533-troubleshooting-windows-7-failure-boot.html

You could also try using that Windows 7 install disk to do a repair install which should preserve your user accounts, data, programs, system drivers, etc.

http://www.sevenforums.com/tutorials/3413-repair-install.html

All of the above suggestions are primarily related to software issues (damaged or corrupt files, malware, etc.) But if your laptop has suffered a hardware failure (CPU, motherboard, hard drive, etc) nothing will work until the bad hardware is replaced.

 

[gardedvior411]

I think the problem is now overheat, because I managed it to boot again but when the processes are very slow I switched it to high performance then it shutted down again.