Question about Acer Aspire T160 (AST160UA3400) PC Desktop

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Computer will not boot operating system

It will go through the action but when it gets to the part where it searches for the operating system it seems to stop. I can hit the F8 key when it is trying to boot and get into the Bio's.

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Check ur hard drive is it showing u in Bios the main culprit is ur Hard Drive try re loading ur operating system by formatting ur hard drive otherwise Change ur Hard Drive it hace bcame weak , there is a hard drive checking utility like HDDLIFE try connecting it to another desktop and scna it thru this software see the strength of the hard drive ur self download the trial version from website www.binarysense.com and let me know if it helps ,

basically if u computer boots ok and goes in bios when u press key that seems like ur whole pc is working ok incl RAM the only thing that is responsible for the operating sys is Hard disk it is where all files reside so when it crashes or get weak it doesnt give up files to boot so pc is unable to boot forward

pls do vote me if u find me helping and fixya problem

Posted on Feb 24, 2009

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My Dell destop computer goes to 3 seconds of Dell Computer screen then 3 seconds of press f1 or press f2 screen then goes dark after being turned on. Cannot go to safe mode. Please help me


From what you are saying it would appear that you are not even getting to the Operating System. There are a few reasons this could be happening. Wen you start up, at the F1-F2 screen, select whichever key will take you to the Setup (CMOS) menu. Once there, search the main screen to see if the hard drive is recognized. There should be at least one hard drive in the bios menu - more if you have more than one installed. If there is no drive there, then you may have a hard disk error or failure. Check the cables to the hard drive and the mainboard. If that is fine, then search the menus for boot device and boot priority settings. Ensure you have the the hard drive selected as boot device and that it is first priority. If it is not, change the settings accordingly. If the CMOS and the hard drive seem to be working properly, then most likely you have had some sort of corruption of the Operating System. There isn't much you'll be able to do with that without having an OS or recovery disc.

Aug 31, 2016 | Dell Dimension E310 PC Desktop

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Different types of Virus and their effect's.


Different Types of Computer Viruses There are Different Types of Computer Viruses could be classified in (origin, techniques, types of files they infect, where they hide, the kind of damage they cause, the type of operating system or platform they attack) etc. Let us have a look at them…

Computer Virus is a kind of malicious software written intentionally to enter a computer without the user’s permission or knowledge, with an ability to replicate itself, thus continuing to spread. Some viruses do little but replicate others can cause severe harm or adversely effect program and performance of the system. A virus should never be assumed harmless and left on a system. Most common types of viruses are mentioned below:

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Resident Viruses
This type of virus is a permanent which dwells in the RAM memory. From there it can overcome and interrupt all of the operations executed by the system: corrupting files and programs that are opened, closed, copied, renamed etc.

Examples include: Randex, CMJ, Meve, and MrKlunky.

Direct Action Viruses
The main purpose of this virus is to replicate and take action when it is executed. When a specific condition is met, the virus will go into action and infect files in the directory or folder that it is in and in directories that are specified in the AUTOEXEC.BAT file PATH. This batch file is always located in the root directory of the hard disk and carries out certain operations when the computer is booted.

Overwrite Viruses
Virus of this kind is characterized by the fact that it deletes the information contained in the files that it infects, rendering them partially or totally useless once they have been infected.

The only way to clean a file infected by an overwrite virus is to delete the file completely, thus losing the original content.

Examples of this virus include: Way, Trj.Reboot, Trivial.88.D.

Boot Virus
This type of virus affects the boot sector of a floppy or hard disk. This is a crucial part of a disk, in which information on the disk itself is stored together with a program that makes it possible to boot (start) the computer from the disk.

The best way of avoiding boot viruses is to ensure that floppy disks are write-protected and never start your computer with an unknown floppy disk in the disk drive.

Examples of boot viruses include: Polyboot.B, AntiEXE.

Macro Virus
Macro viruses infect files that are created using certain applications or programs that contain macros. These mini-programs make it possible to automate series of operations so that they are performed as a single action, thereby saving the user from having to carry them out one by one.

Examples of macro viruses: Relax, Melissa.A, Bablas, O97M/Y2K.

Directory Virus
Directory viruses change the paths that indicate the location of a file. By executing a program (file with the extension .EXE or .COM) which has been infected by a virus, you are unknowingly running the virus program, while the original file and program have been previously moved by the virus.

Once infected it becomes impossible to locate the original files.

Polymorphic Virus
Polymorphic viruses encrypt or encode themselves in a different way (using different algorithms and encryption keys) every time they infect a system.

This makes it impossible for anti-viruses to find them using string or signature searches (because they are different in each encryption) and also enables them to create a large number of copies of themselves.

Examples include: Elkern, Marburg, Satan Bug, and Tuareg.

File Infectors
This type of virus infects programs or executable files (files with an .EXE or .COM extension). When one of these programs is run, directly or indirectly, the virus is activated, producing the damaging effects it is programmed to carry out. The majority of existing viruses belong to this category, and can be classified depending on the actions that they carry out.

Companion Viruses
Companion viruses can be considered file infector viruses like resident or direct action types. They are known as companion viruses because once they get into the system they "accompany" the other files that already exist. In other words, in order to carry out their infection routines, companion viruses can wait in memory until a program is run (resident viruses) or act immediately by making copies of themselves (direct action viruses).

Some examples include: Stator, Asimov.1539, and Terrax.1069

FAT Virus
The file allocation table or FAT is the part of a disk used to connect information and is a vital part of the normal functioning of the computer.
This type of virus attack can be especially dangerous, by preventing access to certain sections of the disk where important files are stored. Damage caused can result in information losses from individual files or even entire directories.

Worms
A worm is a program very similar to a virus; it has the ability to self-replicate, and can lead to negative effects on your system and most importantly they are detected and eliminated by antiviruses.

Examples of worms include: PSWBugbear.B, Lovgate.F, Trile.C, Sobig.D, Mapson.

Trojans or Trojan Horses
Another unsavory breed of malicious code are Trojans or Trojan horses, which unlike viruses do not reproduce by infecting other files, nor do they self-replicate like worms.

Logic Bombs
They are not considered viruses because they do not replicate. They are not even programs in their own right but rather camouflaged segments of other programs.

Their objective is to destroy data on the computer once certain conditions have been met. Logic bombs go undetected until launched, and the results can be destructive.


on Jul 09, 2010 | PC Desktops

1 Answer

How do I set a Compaq Presario SR1403WM back to Factory settings


Step 1:
While many problems with Compaq Presario computers can be solved by less drastic means, there are times when the best course of action is to set the computer back to its original factory default state. Issues with persistent viruses or spyware often require this drastic step, as do problems with a corrupt operating system. Learning how to restore your computer to its original state is an important troubleshooting tool.

Shut down your computer and restart it. Watch for the Compaq logo, then press the "F1" key to enter setup. Press the right arrow within setup to go to the Boot menu. Press the down arrow to access the "Boot Device Priority" option. Change the first boot device to CD-ROM by pressing the down arrow until "CD-ROM" is displayed. Eject the CD tray and place the recovery CD that came with your computer into the tray. If you do not have a recovery CD, you can order one directly from Hewlett Packard. Shut down and restart the computer. The Presario will automatically boot from the CD and begin the recovery process. Select the operating system your computer shipped with. Many Compaq recovery CDs support multiple operating systems, so be sure to choose the operating system your computer shipped with. Insert the operating system CD when prompted. Enter the license key for the operating system when prompted. The license key is typically found on a small tag located on the top or side of the computer.

Mar 10, 2013 | PC Desktops

2 Answers

My pc screen keeps going blue watch the video for more decription


Blue Screen Of Death


  1. You may need to roll back system with System Restore. Under Safe Mode (press F8 during boot and choose safe mode). Start > Search type System Restore. Now choose a date prior to problem. You may have to try a few dates.
  2. Uninstall last program(s) that was installed, again in safe mode.
  3. Test one DIMM at time. One slot at a time. To eliminate possible bad RAM. Unplug PC. Opening case. Remove all RAM. Use static precautions!
  4. Re-install Windows. Clean install works best.
  5. Lastly you may have other hardware problems. If it does another blue screen after reloading windows, especially with a clean install.

Oct 04, 2012 | PC Desktops

2 Answers

Every time i turn on my pc a mesage tell me operation sistem not found


your system has been a victim of aboot virus. run Microsoft security Essential and Comod its free...

Jan 08, 2012 | HEWLETT-PACKARD Hewlett Packard Vectra...

1 Answer

My acer aspire will not boot can you help


I think the operation system is corrupted and the action to do is press the key specified on screen to get to the boot menu ..and select the recovery partition if you have one ..In this option select to total reinstall the operation system and will work after that .
To engage the recovery if it does not work with the boot menu ..try to see if F11 works ..usually this key is reserved for recovery procedure alone ..
If you do not have a recovery partition you will need a recovery disk and the same procedure Boot from disk and reinstall the system or ..a Boot-able disk with operation system on it to reinstall the system from scratch ..
let me know if you have other issues related with this ..

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Cannot sign on my computer getting message windows could not start following is missing or corrupt <windows root>\system 32\ ntoskrnt.exe. reinstall a copy i dont have any of the...


If computer does not boot into Windows, turn on the power and press f8 . On the Windows Advanced Boot Option screen, select one or more of the following options. Select them one at a time and press the enter key to attempt a system restart.
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  • Repair Your Computer allowsUninstall recently installed software programs Windows to run diagnostic tests.
  • Last Known Good Configuration (Advanced) to return settings to an earlier point in time.
  • Boot into Safe Mode and then Uninstall recently installed software programs . When in the computer is running in the Safe mode, click Start , Control Panel , and select the Uninstall a program option. When the computer is operating again, go to program manufacturer's web site for support information.
In Windows XP Click Start , All Programs , Accessories , System Tools , System Restore . Select a windows restore point from a time when the computer operated properly, and then restart the computer. hpweb_1-2_plus.gifhpweb_1-2_minus.gif In Windows Vista or Windows 7 Click Start, type restore in the search field, and select System Restore from the list. Select a windows restore point from a time when the computer operated properly, and then restart the computer. If the computer does not boot into Windows, you can restore the computer settings to an earlier point in time. Turn on the power and press f8 . On the Windows Advanced Boot Option screen, select Safe Mode and boot into Windows.

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I have a apple desktop tower that seems to be caught up in a loop when i boot it up. It seems to be looking for the network that it was previously on. This was given to me at a place of work where i...


Contact Apple via e-mail or phone call (you can most likely find both on the Apple website)
It will most likely cost you money, but they can give you an up-to-date operating system and get your computer back up and running in no time. Depending on how old the computer it is, it may be more cost-efficient to simply buy a new computer. Check prices on an updated operating system and on a new computer before buying.
Hope I helped!
~Aeoryth~

Dec 12, 2009 | PC Desktops

2 Answers

I got a Dell optiplex gx260 pc.so is not booting from the bios.its comming an error(there's no booting device activated). so how can i update the bios ..? plzzz help meeeeee


Did you try to boot from the repair CD?
Or did you try to restore Computer to it's original conditions?
Except for the monitor, keyboard, and mouse, remove all external peripherals including:
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  • Printer
  • Modem or Network cables
  • Personal Digital Assistant (PDA)
  • USB flash drive or other external Hard Drive
  • Any other external devices (e.g., USB-attached devices)
  • Remove the computer from the docking station, if you are using one

  • 1. Turn on Computer and as the computer starts press <F8> on the keybord until the advanced Boot Option menu appears (you have to do this before the windows logo comes up) If you don't see advanced Boot option menu, reset PC and repeat <F8> till you get it.
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    This action will erase all data on drive C:\
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    What operating system do you have installed? If you are using windows Then you need to repair your boot files. Start with boot.ini. you can open this using notepad editor. the info should read:[boot loader]
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    multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Microsoft Windows XP Home Edition" /noexecute=optin /fastdetect
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