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Cannot boot XP laptop


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#1 Bedwyr

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Posted 01 September 2011 - 11:51 PM

So, as the topic says, I cannot boot this Toshiba XP laptop in regular or safe mode. It loads the first screen, and I can go into BIOS or boot from a USB drive, but past that it just goes to black with a blinking white cursor as if I should type.

I tried following the instructions here http://www.bleepingcomputer.com/forums/topic414936.html/page__st__15 and ran xpud testdisk. Once I ran testdisk, I rebooted, and now instead of going to black, it goes to Windows Boot Manager and tells me that "The boot selection failed because a required device is inaccessible."

Any help would be very much appreciated, as this is also affecting the Windows XP side of my bootcamped Mac desktop.

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#2 Elise

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Posted 03 September 2011 - 03:54 AM

Is this a native XP installation or is it a Vista downgrade? Do you have an installation disk (XP) for this computer?

regards, Elise


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#3 Bedwyr

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Posted 03 September 2011 - 05:55 PM

Both are native XP installs, and I believe I can dig up the install disks, yes.

#4 Elise

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Posted 04 September 2011 - 04:40 AM

Sorry, I now see this is a Mac desktop. Unfortunately, fixing the MBR on a mac is not a very good idea. Can you still boot in your Mac installation?

regards, Elise


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#5 Bedwyr

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Posted 04 September 2011 - 06:49 PM

We actually have two computers that appear to be affected by the same virus, one of which is a laptop, and the other is a Mac desktop. The Mac side works just fine, thankfully.

#6 Elise

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Posted 05 September 2011 - 03:18 AM

As far as the Mac is concerned, best is to just reinstall XP with BootCamp. Attempting to fix this may lead in problems with your Mac installation as well, which is not something I want to risk.

Does the laptop have anything else installed except for XP?

regards, Elise


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#7 Bedwyr

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Posted 05 September 2011 - 04:47 AM

Ouch on the Mac, and the laptop only has XP.

#8 Elise

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Posted 05 September 2011 - 08:08 AM

Do you have the XP installation CD for the laptop?

regards, Elise


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#9 Bedwyr

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Posted 16 September 2011 - 03:34 PM

Unfortunately, it appears that the XP installation CD is lost. Tried looking for it for several days, no luck.

#10 Elise

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Posted 17 September 2011 - 07:23 AM

In that case, do the following for the XP laptop:

Try this please. You will need a USB drive.

Download GETxPUD.exe to the desktop of your clean computer
  • Run GETxPUD.exe
  • A new folder will appear on the desktop.
  • Open the GETxPUD folder and click on the get&burn.bat
  • The program will download xpud_0.9.2.iso, and upon finished will open BurnCDCC ready to burn the image.
  • Click on Start and follow the prompts to burn the image to a CD.
  • Remove the USB & CD and insert it in the sick computer
  • Boot the Sick computer with the CD you just burned
  • The computer must be set to boot from the CD
  • Gently tap F12 and choose to boot from the CD
  • Follow the prompts
  • A Welcome to xPUD screen will appear
  • Press File
  • Expand mnt
  • sda1,2...usually corresponds to your HDD
  • sdb1 is likely your USB
  • Click on the folder that represents your USB drive (sdb1 ?)
  • Press Tool at the top
  • Choose Open Terminal
  • Type the following and press enter:

    dd if=/dev/sda of=mbr.bin bs=512 count=1

  • Press Enter
  • After it has finished a file will be located on your USB drive named mbr.bin
  • Remove the USB drive and insert it back in your working computer and navigate to mbr.bin, zip it up and attach it to your next reply.

This will allow me to have a look at the MasterBootRecord of your drive and see if it is infected.

regards, Elise


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#11 Bedwyr

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Posted 17 September 2011 - 02:41 PM

I have the mbr.bin file, but I can't figure out how to attach it here. The help files say there should be some attachment buttons, but I can't find them for the life of me. Is this a part of the forum that doesn't allow attachments?

#12 Elise

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Posted 17 September 2011 - 04:22 PM

My bad. I'll move this to the malware removal forum, where you can attach the file.

regards, Elise


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#13 Bedwyr

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Posted 17 September 2011 - 05:43 PM

Ah, good to know I'm not insane, heh. If you could post again once it gets moved, I'll get the file up.

#14 Elise

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Posted 18 September 2011 - 05:22 AM

Sorry, I thought I had done it, should work now. :)

regards, Elise


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#15 Bedwyr

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Posted 18 September 2011 - 10:49 PM

Hope this is what you needed.

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