Computer does nothing but reach the welcome screen, and reboot constantly


I was downloading software to help protect my computer against spyware and other various forms of harmful products. At the current time, I was downloading windows updates that froze up while downloading, ad aware, and zonealarm. I managed to quarantine the spyware and everything using ad aware. I can tell you that zonealarm did request for me to restart my computer in order to fully install the software. I clicked ok, and then my computer tried booting up. It wouldn't stop. Before it reached the welcome screen, it rebooted. Now it does nothing but reach the welcome screen, and reboot constantly. I need technical assistance really bad. Thank you for reading this. Oh yeah, I do know for a fact that I have a non-removable trojan from flashtrack if that might be useful in your investigation. Thank you please respond ASAP.


This question was answered on October 28, 2004. Much of the information contained herein may have changed since posting.

If a newly added device or a changed driver is causing problems, you can use safe mode to

remove the device or reverse the change

In safe mode, you have access to only basic files and drivers (mouse, monitor, keyboard,

mass storage, base video, default system services, and no network connections) You can

choose the Safe Mode with Networking option, which loads all of the above files and

drivers and the essential services and drivers to start networking, or you can choose the

Safe Mode with Command Prompt option, which is exactly the same as safe mode except that

a command prompt is started instead of the graphical user interface You can also choose

Last Known Good Configuration, which starts your computer using the registry information

that was saved at the last shutdown

Safe mode helps you diagnose problems If a symptom does not reappear when you start in

safe mode, you can eliminate the default settings and minimum device drivers as possible


There are circumstances where safe mode will not be able to help you, such as when

Windows system files that are required to start the system are corrupted or damaged In

this case, the Recovery Console may help you

NUM LOCK must be off before the arrow keys on the numeric keypad will function.

To start your computer in safe mode

1 Start your computer

2 While your computer is starting, press and hold down the F8 key until the Startup Menu


3 Use the UP ARROW and DOWN ARROW keys to select Safe Mode, and then press ENTER.

4 Uninstall the newly installed windows update that is causing the problem.


Repair your installation of Windows

Place the Windows XP CD in the CD-ROM or DVD-ROM drive

If the Windows CD displays the What would you like to do? menu, click Exit

Turn off your computer, wait ten seconds, and then turn your computer back on

If you are prompted to start your computer from the CD, do so

After Windows XP Setup starts, press ENTER to continue the setup process

Press ENTER to choose the option To set up Windows XP now, press ENTER Do not choose the Recovery Console option

Press F8 to accept the licensing agreement

At this point, the Setup program will search for previous installations of Windows XP If Setup does not find a previous installation of Windows XP, then you might have a hardware failure Click No, I still have a problem when I try to start Windows below, and then click Next to continue troubleshooting

If Setup does find a previous installation of Windows XP, then the following message will appear:

" If one of the following Windows XP installations is damaged, setup can try to repair it.

Use the up and down arrows to select an installation.

To repair the selected installation Press R.

To continue without repairing, Press Esc."

Choose the appropriate installation of Windows XP, and then press R to attempt to repair it

Follow the remaining directions on your screen


You might need to change the boot drive sequence in your BIOS settings in order to successfully start your computer from the Windows CD Contact the manufacturer of your computer, or see your manufacturer's documentation, for more information

If you are unable to start your computer from the Windows XP CD, then you might have a CD-ROM or DVD-ROM drive failure or other hardware failure

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Posted by gilbert of Katharine Gibbs School - New York on October 28, 2004