Search : in
By :

Installed Avast. Did boot scan. Cant log on

Last answer on May 10, 2009 5:42:26 pm BST npolar, on May 1, 2009 11:43:41 pm BST 
 Report this message to moderators

Hello,
I downloaded and installed the Avast AV (home) edition on my Windows XP (Service Pack 2) computer. After installation, it rebooted the computer and performed a boot level scan.

Some virus files were automatically moved to chest. Some were deleted. When it found the first file in the windows directory, I cancelled the scan.

The log on screen appeared but as soon as I logged on, the computer would immediately log me back off.

I tried safe mode with DOS prompt but I still can't log on.

Is there any way for me to uninstall the Avast AV product or fix the problem?

regards

Configuration: Windows XP sp2
Firefox 3.0.10

Best answers for « installed Avast. Did boot scan. Cant log on » in :
CANT INSTALL ANY ANTIVIRUS Show
Install the Twain driver for Canon scanner Show Install the Twain driver for Canon scanner Issue Solution Issue How to install the Twain driver for the scanner? Solution To install the Twain driver: There are different ways to install the Twain driver manually: Verify that...
Installing Windows XP from a USB key Show Installing Windows XP from a USB key Creating your bootable USB key: Installing XP Here’s how to create a Windows XP, bootable, USB key. This is very useful especially persons using Netbook or in the case that your PC is not equipped...
GAG (Graphical Boot Manager) ShowGAG:Graphical Boot Manager Intro Advantages Downloading GAG How to install GAG Installing GAG Creating connectons Finalizing the installation Intro GAG is tool for new users who wish to have several Linux distributions on the...
Error Message: Disk Boot failure ShowError Message: Disk Boot failure-insert system disk and press enter Solution 1: Ensure that your drives are empty Solution 2: BIOS set up Solution 3: New hard drive configuration Solution 4: Hard drive not properly plugged in Solution 5:...
[Windows] How to disable scan disk at Start up Show[Windows] How to disable scan disk at Start up It happened almost all the time when windows are improperly shut down after a troubleshoot that scandisk will run on the next reboot to check the contents of the hard disk. (see below...
Download GAG Graphical Boot Manager ShowGraphical Boot Manager is a management programs. The application is launche when your computer starts up and allows you to choose the operational system which you would like to use. The main features : - the possibility to booter from nine...
Download Ext2 Installable File System ShowIf you currently have Windows running and you realize that you need some files for your work which you have stored on an Ext2 volume of your Linux installation, you no longer have to shut down Windows and boot Linux! Furthermore, Windows will now...
Ask your question Reply

1

xpcman, on May 6, 2009 3:12:18 am BST

You might be forced to re-install Windows. check this site for instructions on a Windows Repair/Install

http://www.michaelstevenstech.com/XPrepairinstall.htm


Good Luck

   
Reply to xpcman

2

npolar, on May 6, 2009 3:30:59 am BST

Hello,
I installed avast 4 (free) home edition on my laptop. After the installation, the computer will not let me logon. If I log on as administrator or any other user, the computer instantly logs me back off.
Safe mode, safe mode with command prompt, last good known setting etc do not work.

I copied back the original registry files from c:\windows\repair but this did not work.

I have been able to boot with the windows installation cd and go to the recovery console. From there, i deleted the avast files and disabled all the avast services except:
avast! antivirus
avast! web scanner and
avast! mail scanner

I think that if I can disable the above 3 services whilst in the recovery console, I can start up the computer.
To disable the other services, I used "disable <<service_name>>".
However, the above services are 2 and 3-part names and the regular disable command is not working on them. What commands should I use ?

   
Reply to npolar

3

griever09, on May 6, 2009 6:52:54 am BST
  • +1

Hi npolar,

the reason why you're getting logged off immediately is because the userinit.exe on your system is either missing, deleted or was quarantined by your avast most probably, it must have been infected.

the resolution that you can do WITHOUT DATA LOSS is to get another copy of userinit.exe on the c:\windows\system32 directory usinf the windows recovery console which you will need to have you windows xp cd.

- or -

follow xpcman's advice.

   
Reply to griever09

4

 npolar, on May 10, 2009 5:42:26 pm BST

Hi,

I think that you are right. However, i was able to plug the laptop's hard drive into another computer using a usd to ide connector and copy off the information.

I then reformatted and reloaded the operating system.

The laptop is working again.

I learned a lot during this exercise.
Thank you so much guys

regards

   
Reply to npolar
Ask your question Reply
They need your help