I have had a lot of viruses on my PC which I have removed. I seem to have developed a problem and maybe an important file has been removed as a false positive. I'm not sure. My PC (Windows XP Home SP3) randomly powers off. the last (and only) error in event viewer is as follows:
Source: Service control manager Type: Error Category: None Description: The Network Security service terminated with the following error: The specified module could not be found.
I can't seem to find anything on this Network Security Service other than it might be something to do with Mozilla Firefox? which I do have as my main browser.
I am posting this now in safe-mode with networking which appears to be the only ay to use this PC at all at the moment.
Any ideas on how I can troubleshoot this please. Thanks.
I managed to back up all my files from My Documents in safe mode onto my second partition. There must be some driver and associated hardware not being used in this mode.
I replace the power supply.
I downloaded the latest BIOS flash image from the internet using someone elses computer from the manufactureres site and flashed the BIOS from a floppy disk, this worked fine with no problems first time.
I then started an XP install and deleted my primary partition, created a new one and formated it with NTFS. I chose a full format not the quick format option. Once the set-up gets to graphics mode but before setting location and network settings the PC still just powers off with no warning.
No matter what I try to install on it (Ubuntu, puppy) it will just power off at some random point during the install process. Almost immediately in fact with any of the linux flavours I have tried.
Booting from a live CD has the same result.
It looks like I have some hardware damage somewhere. Maybe my graphics (on board nvidia chipset) or the memory module, or maybe my NIC (also onboard)
Another suspect: The mobo has a 24 pin ATX power connecter, there is a sticky yello label over the last 4 pins and I have run this machine for over a year with a 20 pin connection. Maybe if I get an adapter or a third power supply with a 24 pin connector and remove the label this might magically stabalise things, but I doubt it at the moment.
Next steps: I intend to burn some diagnostic bootable cd's and test some of the components individually. I'm in no rush now as I have purchased a laptop to get me back up and running as it is becoming increasingly likely my PC is fubar.
I have no idea how the hardware got damaged, we've no power outages or surges that I'm aware of and I am 99% percent certain the array of viruses that had got passed my defences were not capable of damaging hardware.