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windows 7 won't boot after running malwarebytes


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#1 giraffasus

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Posted 11 June 2014 - 01:47 AM

A work computer got some viruses somehow which a coworker of mine ran a virus check and cleaner but said that it failed at deleting everything. I suggested maybe we try to run malwarebytes to see if it could find the problems and delete them. It found three things and successfully, or at least I think successfully, deleted them. On restart the following black screen with white text shows.

 

Boot Manager:
Windows failed to start. A recent hardware of software change might be the cause. To fix the problem:

1.Insert your Windows installation disc and restart the computer.
2.Choose your language settings, and then click "Next".
3.Click "Repair your computer."

If you do not have this disc, contact your system administrator or computer manufacturer for assistance.

Status: 0xc000000f

Info: The boot selection failed because a required device is inaccessible.

 

I am not 100% positive that this is what is displaying as the computer's OS is in Japanese, and I can't read Japanese completely. But when I did search for the status # I found this and it seems to match what I can read in Japanese. 

 

The work computers are running windows 7 32bit. I suppose I am asking here because whoever got the viruses on the computer is not owning up to being responsible, and it seems that my fellow coworkers want to try to solve it themselves. I can't try to do a windows repair as I don't know anyone with a 32bit windows 7 install and the blank cd's are not being read when inserted into other work computers. 

 

It is a laptop. 
I found this 
http://www.bleepingcomputer.com/forums/t/389063/computer-wont-boot-after-using-malwarebytes/

but I am not sure if I should try this initial fix as I am not sure if it will actually apply to my case. Any help would be appreciated. 

Thanks.


Edited by hamluis, 11 June 2014 - 09:45 AM.
Moved from Win 7 to Am I Infected - Hamluis.


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#2 Condobloke

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Posted 11 June 2014 - 02:53 AM

G'day and Welcome...No...leave the fix outlined in http://www.bleepingcomputer.com/forums/t/389063/computer-wont-boot-after-using-malwarebytes/ alone...It is unwise to follow the malware removal instructions posted for someone else as they are often specific to that machine and mix of software and malware.

 

 

Has the pc been rebooted since this happened ?


Condobloke

Outback Australian  

 

fed up with Windows antics...??

 

LINUX IS THE ANSWER

 

I USE LINUX MINT 18.3  EXCLUSIVELY.

 Failure is not an option. It comes bundled with your Microsoft product.

 

Success is not Final, Failure is not Fatal,

 

It is the Courage to Continue that Counts.

W.C. 4th June 1940

 

 

 


#3 giraffasus

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Posted 11 June 2014 - 03:26 AM

Yes. Still comes to the same screen. Sorry for the late reply.



#4 Condobloke

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Posted 11 June 2014 - 03:33 AM

Can you boot into safe mode ?

 

To begin entering Windows 7 Safe Mode, turn on or restart your PC.

Just before the Windows 7 splash screen shown above appears, press the F8 key to enter Advanced Boot Options.

 

 

Safe mode with Networking would be good if you can

 

 

or better still..."last known good configuration"


Edited by Condobloke, 11 June 2014 - 03:40 AM.

Condobloke

Outback Australian  

 

fed up with Windows antics...??

 

LINUX IS THE ANSWER

 

I USE LINUX MINT 18.3  EXCLUSIVELY.

 Failure is not an option. It comes bundled with your Microsoft product.

 

Success is not Final, Failure is not Fatal,

 

It is the Courage to Continue that Counts.

W.C. 4th June 1940

 

 

 


#5 giraffasus

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Posted 11 June 2014 - 03:51 AM

I can't boot to safe mode. The computer goes straight to that screen even if I press f8.



#6 noknojon

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Posted 11 June 2014 - 04:07 AM

Hello -

Just quick questions for you.

 

Can you tell us what Antivirus program your company uses please ??

 

Did you use the Free version of Malwarebytes Anti-Malware or is this the paid company version ??



#7 Condobloke

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Posted 11 June 2014 - 04:10 AM

You are definitely going to have to do a System Repair ..however , without the installation disc.......that is a little outside of my level of expertise.....and also there is the added question of Malware......This problem was not caused by Malwarebytes......it was caused by malware infection.

 

 

Stay tuned....I will find someone to help you.


Condobloke

Outback Australian  

 

fed up with Windows antics...??

 

LINUX IS THE ANSWER

 

I USE LINUX MINT 18.3  EXCLUSIVELY.

 Failure is not an option. It comes bundled with your Microsoft product.

 

Success is not Final, Failure is not Fatal,

 

It is the Courage to Continue that Counts.

W.C. 4th June 1940

 

 

 


#8 giraffasus

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Posted 11 June 2014 - 04:25 AM

Unfortunately I don't know what the virus scan my coworker used. It definitely was not a company program. It was a japanese virus scanner, so I'm not sure.

 

I used the malwarebyte anti-rootkit that can be downloaded from this site. All I know is that after running that and having it remove the three things it found (two spyware and one malware), that on restart it immediately went to the boot manager screen with the info listed above. I ran adwcleaner first, which it found things as well, but on restart the computer boot up. 

 

The problem with the system repair was that the other laptop computers our company has for some reason don't recognize the inserted blank cd when I try to make a recovery disk. As the OS is in Japanese I can't read everything, and none of my coworkers are very tech savvy so finding out how to get it to read the disk is a bit... overly cumbersome.  



#9 noknojon

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Posted 11 June 2014 - 05:19 AM

You can use / make a repair disc.

 

This guide is from Windows7 Forum - A reply to your Status: 0xc000000f problem

 

To get a repair disc, find someone with Windows 7 32bit or 64bit to match the problem computer and Create a Windows 7 System Repair Disc — MAXIMUMpcguides – Windows 7 tips, tricks, help, and how-to guides.

 

Once you can get the system booted (in Safe or Normal mode) we can find your problem....

 

Are all of the computers you have access to in Japanese operating versions ??


Edited by noknojon, 11 June 2014 - 05:25 AM.


#10 giraffasus

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Posted 11 June 2014 - 05:48 AM

At work, all of the computers have a japanese operating system. I checked out that same forum and found that I can burn a disc using an iso. So I will have to do that tonight on my computer. Then I'll have to see tomorrow. I will post tomorrow at work when I see what the disc does. Thanks for the help so far.



#11 noknojon

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Posted 11 June 2014 - 06:10 AM

No problem -

 

There will be someone here tomorrow ........

Are you based in Kobe or somewhere similar, as we are in Australia and just a bit off your time line.

 

Condobloke and I am both watching the topic.



#12 giraffasus

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Posted 11 June 2014 - 09:47 AM

I'm in Osaka. I burned an iso of windows  7 32bit repair disc. So... I will see tomorrow if it works. Thanks for your help so far.



#13 giraffasus

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Posted 11 June 2014 - 11:23 PM

Okay. So after burning a repair iso of windows 7 32bit from the windows 7 forum, and attempting to a repair I was met with a screen explaining that it could not be fixed automatically. I wrote down the session details. They are as follows, though a bit abridged. 

 

session details

 

system disk=\device\harddisk0

windows directory=D:\windows

autochkrun=0

number of root causes=1

 

on all tests preformed an error code=0x0 was listed

 

root cause found:

boot sector for system disk partition is corrupt

 

repair action: boot sector repair

result: failed. error code 0x490

 

So... I am not sure what to do now. Any ideas?



#14 giraffasus

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Posted 11 June 2014 - 11:48 PM

I just tried to run bootrec/scanos through command prompt using the recovery disk. It read that there are 0 windows installations.



#15 noknojon

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Posted 12 June 2014 - 05:43 AM

Sorry I picked this up a bit late -

 

root cause found:

boot sector for system disk partition is corrupt <<<< This is your main problem ......

 

I will have a deeper look and post back soon -






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