The system boots up the moment power and becomes unresponsive.
I recently had a trojan infection in my desktop computer that ended up with me have to reformat the harddrive, however, before I could do so, a new problem showed up. Whenever I give the system power, it boots up automatically, and will not shut down, nor restart, even if I hold the power button down. The only way to turn it off is by flipping the switch in the back. It displays nothing on the screen either, so I can't do anything with it. I tried replacing the hard drive, and that didn't help either. It currently has a blank hard drive in it, and still does the same thing, and it will run like this even if I disconnect power to both the hard drive and the CD-rom drive. Any idea how I can fix this? I can only assume it's a motherboard problem, but is there a way to make it work without having to replace the board?
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Re: The system boots up the moment power and becomes...
Try resetting your BIOS.
To do this, depending on your board, there will be a small battery. Make sure the power connector is removed, and then remove the battery from the board. Wait 30 seconds, and then reinsert the battery, taking care to make sure it is in the right way round.
Try powering up your computer again, and see what happens. You will almost certainly have to reset the clock afterwards, however the computer should automatically detect the drives, allowing you to reinstall the operating system etc.
If that doesn't work, then it sounds like you have a failed motherboard.
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Sometimes your computer might get to the point that you won't be able to do anything on it because it's infected with viruses and trojans. This is one of the worst infections you can get and you need to follow these steps in order to get rid of the infected files.<br /><br />1. Download Hiren's Boot CD from a different computer if your doesn't work http://www.hirensbootcd.org/download/Hirens.BootCD.12.0.zip <br /><br />2. Burn it on a CD and then put the CD into the computer full with viruses<br /><br />3. Boot from CD when prompted and from the CD menu select Mini XP which will load a mini copy of Windows XP onto your machine<br /><br />4. After Windows has loaded, go to Hiren's Boot CD menu and from menu select Malwarebytes' Anti-Malware<br /><br />5. Once Malwarebytes' Anti-Malware is loaded, run a clean on your computer. This will temporary and hopefully forever will remove some of the trojans and the rogue antivirus<br /><br />6. When the scan is finished click to remove the infected files and restart your computer. Don't forget to take out the CD<br /><br />7. From the other computer download a FREE antivirus Microsoft Security Essentials from this link http://www.microsoft.com/security_essentials/<br /><br />8. Install it on the infected machine. Upon restart you will be able to do this, although the computer may be still infected. After installation of Microsoft Security Essentials, run a full computer scan to clean any infected files that weren't already removed<br />
A Trojan Horse is full of as much trickery as the mythological Trojan
Horse it was named after. The Trojan Horse, at first glance will appear
to be useful software
but will actually do damage once installed or run on your computer.
Those on the receiving end of a Trojan Horse are usually tricked into
opening them because they appear to be receiving legitimate software or
files from a legitimate source. When a Trojan is activated on your
computer, the results can vary. Some Trojans are designed to be more
annoying than malicious (like changing your desktop,
adding silly active desktop icons) or they can cause serious damage by
deleting files and destroying information on your system. Trojans are
also known to create a backdoor
on your computer that gives malicious users access to your system,
possibly allowing confidential or personal information to be
compromised. Unlike viruses and worms, Trojans do not reproduce by
infecting other files nor do they self-replicate.
1. You have to check your PC power supply unit whether it is functioning properly or your AC power source is ok.
2. Your system maybe badly infected with dangerous objects, like root-kits, malwares, virus, trojans and etc........
The trojan is certainly a problem, and it could be that your avast itself in infected. Your best option is to try installing a different anti-virus system, if it won't let you install properly, you probably have a nasty little trojan. Try using an anti-virus that allows you to run the diagnostics from a CD before the operating system loads. As for the shutdown, that sounds like it could be a faulty power supply. I've had a few that died on me, and one of the first signs was the computer being unable to power up immediately after a shut down. Try disconnected any excessive USB devices that might consume too much energy, if you find yourself booting up easily when you're consuming less energy, you'll likely need a new power supply soon.
Hijackers-Like airplane hijackers, for example you want to open www.yahoo.com but your browser is opening another webpage it is called browser hijacker. Viruse- a program which makes your pc slow,unresponsive etc. Worn- it is more like a viruse but it acts slowly Trojan- it is a program pretending to be a useful one but actually it is harmful one. Spyware- it is a programe who sends information without the knowledge of computer owner
due to some virus/spyware attack some of the system files might have got corrupted which are needed for the successful operation ...
even though some people will say that the virus will not infect to vista .. but infact the common small viruses will not infect normally but the spyware/malwares will attack and some other virus which are not little they will attack to vista ..
so i suggest to install some good update antivirus and scan your system and fix all of them ...
after fixing if you still persist the same problem then you must reintall the vista this will solve your problem ..
if your computer is totally unresponsive then go to the "safe mode"(by press F8 key at the system startup) then scan your system and if needed reinstall it ...
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Hi there... MMMMMmmmmmmmm can you be more specific ? has it recently started to do this or has it done this since you purchased the computer ? Are you trying to shut it down from the windows shutdown menu or are you pressing the power button to let windows shut it down ?? I Need more information before I can help you work out whats going on with your computer ...If its only just started to happen you may have a virus or a trojan infecting your system or your bios has become corrupted.The windows registry may have become corrupted or your power supply is faulty...the problems that could cause this are numerous , please be more specific about how you are shutting the computer down..
do u have any antivirus which is boot from cd. it will help u in this time to remove all your virus and ohterwise u can updated file from any pc from the internet and install it and try to clean your pc for virus