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My laptop restarts every couple of hours.

My laptop (Samsung) restarts every couple of hours for some unknown reason. I suspect that the problem is with the operation system, because my antivirus (avast) finds something in the file:
Windows\System32\Drivers\asc3550p.sys
But I do not know how to be sure in it and what to do.
Thanks in advance!
Elis

Posted by on

  • g00ey May 11, 2010

    Try to get e.g. a ubuntu dist, burn it on CD and boot up the computer up from the CD. The key idea is to boot up your computer from a clean system that you know is free from viruses, rootkits et al. I recommend that you use something more elaborate than DOS boot/safe-mode so that your GFX card is properly engaged with high resolutions and all.

    Now leave the computer on for as many hours as you need to get convinced that it will not reboot.

    If it does, then your problem is hardware or BIOS related. If not then there is a problem with your windows installation.

    Problems with the Windows installation could be anything from rootkits, viruses to malfunctioning drivers.

    I know that some windows dists (esp the 64-bit versions) reboot the system if any kind of software tries to tamper with the system kernel. This tampering is not only done by malicious programs but also buy legit software as well, examples of non-malicious software are Sandboxie, Macrovision (DVD/Blu-Ray copy protection), some drivers, ...

    Try to get all software out there being used for rootkit removal/detection. Try popular software such as VundoFix.exe, ComboFix.exe, get WindowsDefender. Download F-Secure's rootkit scanner and scan the computer.

    From then on check all the running processes manually and try to understand what is running, check it regularly so that you learn the system. If something new and suspicious comes up that you cannot relate to eny recent installation/update, check it up, run HiJackThis and go through the logs. You cannot always trust the Antivirus software, some viruses go undetected and some are false positives, you have to use your own judgement. google any suspiciouls runnig process. Remember that rootkits cannot be detectd easily.







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Asc3550p.sys is a spyware. you need to remove it.
go to the following link and downlaod the "serach and distroy"
http://searchdestroydownload.com/
run it and remove the spyware.

hope that helps.

Posted on Jan 03, 2009

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