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WINDOWS XP BOOT UP PROBLEM

Hi, experts I have a DELL Dimension computer with Windows XP that have a problem to boot up, it does not even boot on Safe Mode, or let me start it with the last configuration, when I turned the computer it does not show me the Windows XP Logo just a black screen. Everything happend after I ran Malawarebytes to clean the computer from spyware which found 22 malicious program, when the software ask me to restart the computer to complete the process, I did it and later did not boot up again, before I ran Malawarebytes, the computer was working properly but after the desinfection the boot up problem started. I have used malawarebytes many times and nothing like this happend before, I was trying to run the recovery tool from the Installation Windows XP Cd-rom but is asking me for the administration password which I don't remember, is there other way that you guys knows to fix this problem?
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psoftech
Asked:
psoftech
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3 Solutions
 
KCTSCommented:
Try running a repair install from the CD, if that fails then a full re-install is the quickest option, http://www.microsoft.com/windowsxp/using/helpandsupport/learnmore/tips/doug92.mspx
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houssam_balloutCommented:
remove the hard disk and plug it to another computer, then do a system scan , then put it back to the laptop
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psoftechAuthor Commented:
Hi, houssam_ballout I already did this I put it in a enclousure and scanned the hard drive, and I put it back to the desktop PC but still it does not boot up
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houssam_balloutCommented:
had you try to do system repair
http://michaelstevenstech.com/XPrepairinstall.htm
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psoftechAuthor Commented:
Hi, KCTS I will try that, the only think is that  I would like not to install Windows XP from scratch (if is that what you meant)  because I do not want to loose the information I already did a backup, but there are some applications that I would like not to have the necessity to install them again
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KCTSCommented:
The repair install may do the trick and will preserve your data and installed programs. If that fails then the quickest and safest solution is to re-install from scratch - not ideal I know, but it WILL work and is normally much faster that trying to locate and then repair the problem.
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optomaCommented:
Any bakup of important data?
What were the threats classified as?

You could use Ubcd4win to system restore the machine back a few weeks and then run Combofix firstly, although too much damage may already be done, especially if a file infector was active.

Since you would like to keep that system intact try system restore and then Combofix.
Read+follow Combofix's proceedure and post its logfile here after

http://www.ubcd4win.com/
http://www.ubcd4win.com/burn.htm  iso help
http://www.bleepingcomputer.com/combofix/how-to-use-combofix
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psoftechAuthor Commented:
I made a backup, I do not remember the classification of the thread sorry I can not chack the log.
Hi, optoma I would like to keep it intact and I think Windows restore will help but is asking me for the administrator password which I don't remember, the screen that shows me System restore  to ask me for the password is a D.O.S you know those windows that you can not use the mouse (*not windows interface"). Do you or somebody else knows how tho retrieve this password or reset it without loos the data?

By the way KCTS the repair option did not work
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torimarCommented:
Try a blank password for the administrator account.
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optomaCommented:
Ok, having a data backup is good :)
Ubcd4win has a system restore feature builtin >regreswiz app.
Download and create the bootable cd and run the app. It dosn't require a password like recovery console.
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psoftechAuthor Commented:
I did not work I already did that too
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KCTSCommented:
OK, if the repair option did not work then your installation is seriously damaged - a fresh install would be the sensible option.
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senadCommented:
Once a computer gets infected with malware it is almost impossible
to get rid of it.It also depends with what was the system infected with.
usually one infection opens the door to another and so on....
Post - infection scans yield only limited results and are not very successful.
With System restore enabled,the infection is usually back in no time.
Repairing the installation just brings the malware back.
So save yourself time (and you would sleep better too) and once more
do a clean install of the OS.Format the disk and the MBR prior to
reinstall.
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psoftechAuthor Commented:
Hi, KCTS I made the bootable CD UBCD4WINV350 and I ran regrewiz it did not work now the computer boot from the hard drive but it does not startup completly also the the regrewiz app only restored the system as it was in 2007. I would keep trying a little more because the customer does not want to loose the applications that are in the hard drive, besause he does not have the installation software for them. If somebody has more suggestions that could work I will apreciatte that.

I also try to access the recovery console but it did not let me, I retrieved the administrator which is blank and still not let me.
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optomaCommented:
When you system restored, how far back did you go? It gives a date beside each restore point.
Are all the applications there?
How far does the system startup to?
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psoftechAuthor Commented:
Well, I used a software call regrewiz, after I did this windows logo appears when I boot from hrad drive  later and error 0x80004005. I believe is because the system was restored from a 2007 (Year 2007) file, the application and the data is on the hard drive I backep the data up.
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