Jump to content


Register a free account to unlock additional features at BleepingComputer.com
Welcome to BleepingComputer, a free community where people like yourself come together to discuss and learn how to use their computers. Using the site is easy and fun. As a guest, you can browse and view the various discussions in the forums, but can not create a new topic or reply to an existing one unless you are logged in. Other benefits of registering an account are subscribing to topics and forums, creating a blog, and having no ads shown anywhere on the site.

Click here to Register a free account now! or read our Welcome Guide to learn how to use this site.


Constant Reboot

  • Please log in to reply
1 reply to this topic

#1 Jonothon


  • Members
  • 1 posts
  • Local time:07:09 PM

Posted 20 August 2008 - 07:49 AM

Hi, running Vista Home Premium on Acer Aspire laptop, 2 weeks ago problems started appearing in the guise of machine would boot up into windows, then log on, connect to internet, then it reboots itself, if left to it's own devices, this keeps happening.

Been battling to fix this for now over two weeks but to no avail. Tried Spybot sd, spyware browser and many others including Smit fraud Fix but even that wont complete. Have burnt off copies of Combo fix, Hijack this but as I have no previous knowlege of these, am more than nervous to use these un-supervised.

The difficulty also being that because of the constant reboot thing I cant get up onto the internet from the laptop so have to download from this machine and burn off any programs to cd then transfer them to the laptop.

Had blue screen several times, stating KCOM.SYS and Spybot found numerous instances of viruses but was unable to remove them, Also "Recovery" and repair all other options including system restore fail to work.

Any help would be very appreciated !

BC AdBot (Login to Remove)


#2 quietman7


    Bleepin' Janitor

  • Global Moderator
  • 52,082 posts
  • Gender:Male
  • Location:Virginia, USA
  • Local time:01:09 PM

Posted 20 August 2008 - 09:51 AM

Are you using Spyware Doctor?

kcom.sys is a driver installed by PC Tools Spyware Doctor along with several others as discussed in this discussion thread. If you do a google search, you will find a lot of reports of systems crashes with that file involved. You can try uninstalling Spyware Doctor or check at the PC Tools Support forum to see if they have a solution.

You may be dealing with a combination of malware and non-malware related issues so also do this.

Please download Malwarebytes Anti-Malware and save it to your desktop.
alternate download link 1
alternate download link 2
  • Make sure you are connected to the Internet.
  • Double-click on mbam-setup.exe to install the application.
  • When the installation begins, follow the prompts and do not make any changes to default settings.
  • When installation has finished, make sure you leave both of these checked:
    • Update Malwarebytes' Anti-Malware
    • Launch Malwarebytes' Anti-Malware
  • Then click Finish.
MBAM will automatically start and you will be asked to update the program before performing a scan.
  • If an update is found, the program will automatically update itself.
  • Press the OK button to close that box and continue.
  • If you encounter any problems while downloading the updates, manually download them from here and just double-click on mbam-rules.exe to install.
On the Scanner tab:
  • Make sure the "Perform Quick Scan" option is selected.
  • Then click on the Scan button.
  • If asked to select the drives to scan, leave all the drives selected and click on the Start Scan button.
  • The scan will begin and "Scan in progress" will show at the top. It may take some time to complete so please be patient.
  • When the scan is finished, a message box will say "The scan completed successfully. Click 'Show Results' to display all objects found".
  • Click OK to close the message box and continue with the removal process.
Back at the main Scanner screen:
  • Click on the Show Results button to see a list of any malware that was found.
  • Make sure that everything is checked, and click Remove Selected.
  • When removal is completed, a log report will open in Notepad.
  • The log is automatically saved and can be viewed by clicking the Logs tab in MBAM.
  • Copy and paste the contents of that report in your next reply and exit MBAM.
Note: If MBAM encounters a file that is difficult to remove, you may be asked to reboot your computer so it can proceed with the disinfection process. Reagardless if prompted to restart the computer or not, please do so immediately. Failure to reboot normally (not into safe mode) will prevent MBAM from removing all the malware.
Windows Insider MVP 2017-2018
Microsoft MVP Reconnect 2016
Microsoft MVP Consumer Security 2007-2015 kO7xOZh.gif
Member of UNITE, Unified Network of Instructors and Trusted Eliminators

If I have been helpful & you'd like to consider a donation, click 38WxTfO.gif

0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users