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Ran antivirus: now can't get get back in at all


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#1 mgb123

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Posted 02 May 2009 - 11:21 AM

Was infected by AV Antispyware virus
Went to safe mode, and ran Avira which detected and deleted 66 files (including Vungo, Crypt and other filenames), and gave me 4 warnings for files that needed to be deleted on reboot.
After successful scan by Avira, it suggested urgent need to reboot immediately. I did.
Computer hung in the reboot. I restarted but was unable to to get past the welcome screen.

Now:
I F8 to get to the safe mode command page,
Whichever option I choose, it runs through to the welcome screen (with the safe mode frame if I choose that option) as if everything is ok.

I enter my password and it flashes quickly to my desktop , but then it instantaneously goes back to the welcome screen with a logout message. Happens repeatedly.

So I can't get into the darn thing at all. It does this pattern on each of the F8 choices (normal, safe mode, safe mode with command prompt, debugging mode etc.)

So now I am on my wife's laptop and looking for any sage advice.
Many thanks in advance. This is a repost as I got no responses since last Thursday.
Michael

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#2 garmanma

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Posted 03 May 2009 - 08:43 PM

Which OS are you using and do you have a Retail CD or the vendor CD came with the computer?
Mark
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#3 mgb123

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Posted 04 May 2009 - 09:01 AM

Windows XP Home


I don't know if I have the disks, but I suspect I do.

#4 garmanma

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Posted 04 May 2009 - 07:08 PM

We will have to create a small 'fix CD' to solve this problem.
Please download RC.ISO and save it somewhere you can find it.
Also download MagicISO and install it.

Start MagicISO. You should see a window informing you about the full version of MagicISO.
In the bottom right select Try It! and the program will open.
Click on File and then on Open and navigate to the RC.ISO file you downloaded. Select it, and click Open.

First, we'll need to add a clean version of userinit.exe to the current RC.ISO
  • In the upper right pane, double click on the i386 folder.
  • Right click in the upper right pane and select Add Files...
  • Navigate to C:\Windows\System32 and select userinit.exe
  • Then click Open to add userinit.exe to the CD image.
  • Click File and select Save As...
  • Name the file RCplus and save it somewhere you can find it.
Next, we'll need to burn the newly created image to a disk that we can use to fix the problem.
  • Put a blank CD-R disk in your CD burner and close the tray. If an AutoPlay window opens, close it.
  • Click on Tools and select Burn CD/DVD with ISO.... A window will appear.
  • Click on the little folder to the right of CD/DVD Image File then navigate to the newly created RCplus.iso Image file and click Open.
  • In the CD/DVD Writing Speed drop-down menu choose the 8X setting.
  • Under Format make sure that Mode 1 is selected.
  • And finally, click on the Burn it! button to burn RCplus.iso to disk.
Once the disk is burned, put it in the machine you want to fix and restart it.
Boot to the CD just as you would with a Windows XP disk.
At the Welcome to Setup screen, press R to enter the Recovery Console.
Choose the installation to be repaired by number (usually 1) and press Enter.
When you are asked for the Administrator password, enter the password or leave it blank (default) and press Enter.

At the C:\Windows> prompt, type the following commands pressing Enter after each one. Note: Watch the spaces.

D:
cd i386
copy userinit.exe c:\windows\system32
exit

After putting in the third command, you should receive the message 1 file copied which will indicate that the operation succeeded.
Now take out the CD and reboot your computer to normal mode. Try to log in and it should let you back in.
Mark
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#5 mgb123

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Posted 04 May 2009 - 09:53 PM

cheers Mark. I'll try it tomorrow. Many many thanks i n advance for the detail and the step by step. It's much appreciated.
I'll post tomorrow after I try the fix.
Best
Michael

#6 mgb123

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Posted 05 May 2009 - 08:57 PM

well....
made the boot-cd and booted to the recovery screen v, but got this:

Setup did not find any hard drives installed on your computer.
Make sure any hard drives are powered on and properly connected...

Setup cannot continue. to quit setup, press f3.

then it kicks me out and reboots...and repeats.



If I hit f2 in the initial boot sequence to goto the Setup screen, it finds my internal hard drive without issue.

Thanks again in advance, any help appreciated.
michael

#7 mgb123

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Posted 05 May 2009 - 09:23 PM

with a bit of research, it appears i will need to copy the SATA driver onto a freaking floppy disk, of all things.

I've found the driver, but will have to try at work to find a floppy drive.

More later. thanks

#8 mgb123

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Posted 09 May 2009 - 12:38 PM

Final Resolution:

Driver load did not work
Went to system set up screen
Changed SATA Operation to "Combination" from "RAID/Autodetect/AHCI"
Rebooted and Setup found the internal hard drive.

Got to DOS prompt and navigated to i386 directory. File copy filed for unknown path error to the c: drive.
Unable to find any subdirectories on the C:\ drive. Dir also failed.

So punted. Had the DOS prompt and control of my Windows XP cd, so reinstalled XP and am in the process of rebuilding everything.

Appear to virus-free and functioning well. Still a fairly lengthy process left to reload all lost programs etc, but at least I'm back and running.

Many thanks, Mark for your help. Would never have gotten this far without your help.
Best
Michael

#9 garmanma

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Posted 09 May 2009 - 05:45 PM

Well, you're starting out fresh and that's a good thing
Sorry there was no other alternative
Mark
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why won't my laptop work?

Having grandkids is God's way of giving you a 2nd chance because you were too busy working your butt off the 1st time around
Do not send me PMs with problems that should be posted in the forums. Keep it in the forums, so everyone benefits
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