Jump to content


 


Register a free account to unlock additional features at BleepingComputer.com
Welcome to BleepingComputer, a free community where people like yourself come together to discuss and learn how to use their computers. Using the site is easy and fun. As a guest, you can browse and view the various discussions in the forums, but can not create a new topic or reply to an existing one unless you are logged in. Other benefits of registering an account are subscribing to topics and forums, creating a blog, and having no ads shown anywhere on the site.


Click here to Register a free account now! or read our Welcome Guide to learn how to use this site.

Photo

Missing OS


  • Please log in to reply
13 replies to this topic

#1 Thoth_Dhwty

Thoth_Dhwty

  • Members
  • 73 posts
  • OFFLINE
  •  
  • Gender:Male
  • Local time:02:45 AM

Posted 28 December 2016 - 10:28 AM

 Hello,

 

 I am trying to fix a missing OS on a Toshiba Satellite laptop.

 After booting to the USB installation media, I attempted a Startup Repair.

 

 

Here's the logs which were created on the USB installation media:

 

In Temp folder:

 

 bcdinfo.txt

 

 The boot configuration data store could not be opened.

The volume for a file has been externally altered so that the opened file is no longer valid.

 

 

 

Srttrail.txt

 

 Startup Repair diagnosis and repair log

---------------------------
Number of repair attempts: 1
 
Session details
---------------------------
System Disk = \Device\Harddisk0
Windows directory = 
AutoChk Run = 0
Number of root causes = 1
 
Test Performed: 
---------------------------
Name: Check for updates
Result: Completed successfully. Error code =  0x0
Time taken = 0 ms
 
Test Performed: 
---------------------------
Name: System disk test
Result: Completed successfully. Error code =  0x0
Time taken = 266 ms
 
Test Performed: 
---------------------------
Name: Disk failure diagnosis
Result: Completed successfully. Error code =  0x0
Time taken = 0 ms
 
Test Performed: 
---------------------------
Name: Disk metadata test
Result: Completed successfully. Error code =  0x0
Time taken = 31 ms
 
Test Performed: 
---------------------------
Name: Target OS test
Result: Completed successfully. Error code =  0x0
Time taken = 63 ms
 
Root cause found: 
---------------------------
No OS files found on disk.
 
Repair action: Partition table repair
Result: Completed successfully. Error code =  0x0
Time taken = 406 ms
 
---------------------------
---------------------------

 

 

 

 

 So I realise OS is missing on the disk but now every time I try to boot from the USB installation media, it's going straight to a BSoD which displays:

 

 

 Recovery

 Your PC needs to be repaired

 The Boot Configuration Data file doesn't contain valid information for an operating system.

 

 File: \Boot\BCD

 Error Code: 0xc0000098

 

 You will need to use the recovery tools on your installation media. If you don't have any installation media (like a disc or USB device), contact your system administrator or PC manufacturer. 

 

 

 

So how do I get the system to run the installation USB again so I can attempt a System Reset ?

 

 Thanks!



BC AdBot (Login to Remove)

 


#2 kaljukass

kaljukass

  • Banned
  • 291 posts
  • OFFLINE
  •  
  • Gender:Male
  • Local time:11:45 PM

Posted 28 December 2016 - 10:48 AM

 Hello,

 

 I am trying to fix a missing OS on a Toshiba Satellite laptop.

 After booting to the USB installation media, I attempted a Startup Repair.

 

This means that it was not booted from USB. If is booted from USB, You see the installation wizard at first. 

There You can do selection, what language, select the location for time and language and currency settings, select how to install or repair etc.

I can not understand how can not understand how to run from USB. Is it really so difficult? 

Every day somebody cannot boot and every day is told again and again, already about 8-9 years.


Edited by kaljukass, 28 December 2016 - 10:53 AM.


#3 bwv848

bwv848

    Bleepin' Owl


  • BSOD Kernel Dump Expert
  • 2,952 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:92.96 million miles away from the sun
  • Local time:03:45 AM

Posted 28 December 2016 - 10:54 AM

If you can get into the Recovery Environment's Command Prompt, try these commands:

bootrec.exe /fixmbr

bootrec.exe /fixboot

bootrec.exe /rebuildbcd

Restart your computer, run Startup Repair one more time, and reboot. Thank you!
 

 


If I do not reply in three days, please message me.
 
BC BSOD Posting Instructions | Carrona BSOD Index | Driver Reference Table (DRT)


#4 Thoth_Dhwty

Thoth_Dhwty
  • Topic Starter

  • Members
  • 73 posts
  • OFFLINE
  •  
  • Gender:Male
  • Local time:02:45 AM

Posted 28 December 2016 - 11:04 AM

 Well that's the problem, I cannot get into the Recovery Environment.

 

 I read online a bit and apparently Kingston USB drives are at fault for this. I don't see how but will give it a try and use a Samsung USB drive.

 

 Will update when done!

 

This means that it was not booted from USB. If is booted from USB, You see the installation wizard at first. 

There You can do selection, what language, select the location for time and language and currency settings, select how to install or repair etc.

I can not understand how can not understand how to run from USB. Is it really so difficult? 

Every day somebody cannot boot and every day is told again and again, already about 8-9 years.

 

 

 
 Seriously, I stated that I have run the Startup Repair from the USB media and that the Startup Repair produced those logs on the USB media, which means I got through booting the installation files once. The problem appeared after the attempt to repair. 

Edited by Thoth_Dhwty, 28 December 2016 - 11:08 AM.


#5 JohnC_21

JohnC_21

  • Members
  • 22,592 posts
  • OFFLINE
  •  
  • Gender:Male
  • Local time:03:45 AM

Posted 28 December 2016 - 11:13 AM

Can you access the boot menu by tapping F12 at boot? I have never heard of Kingston drives giving problems. Did you create the bootable USB using a Windows 7 iso? What did you use to create the bootable USB? I have found that Rufus is the best for creating bootable USB flash drives.


Edited by JohnC_21, 28 December 2016 - 11:13 AM.


#6 Thoth_Dhwty

Thoth_Dhwty
  • Topic Starter

  • Members
  • 73 posts
  • OFFLINE
  •  
  • Gender:Male
  • Local time:02:45 AM

Posted 28 December 2016 - 11:27 AM

 Yes, able to do that and choose to boot from USB.

 

 Problem was the Kingston drive wouldn't boot the the Win7 installation anymore.

 

 I just made a Win7 iso bootable drive on a Samsung with Rufus and it all went smoothly. It actually boots the USB normally without no problem now.

 

 I tried the CMD commands to fix this is what I got back:

 

 X:Sources>bootrec.exe /fixmbr

The device is not ready.
 
X:Sources>bootrec.exe /fixboot
The device is not ready.
 
X:Sources>bootrec.exe /rebuildbcd
Scanning all disks for Windows installations.
 
Please wait, since this may take a while...
 
Successfully scanned Windows installations.
Total identified Windows installations: 0
The operation completed successfully.
 
Next I tried a fresh install and when getting to the drive selection screen I am getting following message:

 A required CD/DVD driver device is missing. If you have a driver floppy disk, CD, DVD, or USB flash drive, please insert it now
 
Note: If the Windows installation media is in the CD/DVD drive, you can safely remove it for this step.
 
And the following options: Browse, Ok and Cancel.

 

 

 
If I try to Browse, the only drives available are:
1. Removable Disk (C:)
2. CD Drive (D:)
3. Boot (X:)
 
Whichever one I choose I get an error saying:
 
No device drivers were found. Make sure that the installation media contains the correct drivers, and then click OK.

 

 

 
 Could it be that the HDD inside the laptop is damaged/not recognised ? If so, how to check for it ? Thanks


#7 bwv848

bwv848

    Bleepin' Owl


  • BSOD Kernel Dump Expert
  • 2,952 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:92.96 million miles away from the sun
  • Local time:03:45 AM

Posted 28 December 2016 - 11:36 AM

You can try:

 

SeaTools for DOS

 

Back-up your data if possible!


If I do not reply in three days, please message me.
 
BC BSOD Posting Instructions | Carrona BSOD Index | Driver Reference Table (DRT)


#8 JohnC_21

JohnC_21

  • Members
  • 22,592 posts
  • OFFLINE
  •  
  • Gender:Male
  • Local time:03:45 AM

Posted 28 December 2016 - 11:45 AM

Seatools for DOS may not detect your SATA disk. UBCD includes Seatools for DOS along with Parted Magic which includes Disk Health. Create a bootable USB of UBCD. At the menu screen select HDD and start Seatools for DOS. If it does not detect your HDD then at the UBCD menu select Parted Magic and click on Disk Health. Do the short and long test. Disk Health is GsmartControl

 

http://www.ultimatebootcd.com/

 

If any data is needed off the drive you can copy it to an external USB using Parted Magic.

 

http://fixit.litten.com/linuxfilecopy.html

 

The problem you are experiencing could also be a bad iso file. You can download your version of Windows 7 using this tool. You will need a valid key. It should be on the COA sticker on the bottom or side of the computer. If this is an OEM iso provided by your computer's manufacturer and the key is not legible then the Windows iso downloader will not work. It is possible to pull the key from the SOFTWARE hive in C:\windows\system32\config but this is only possible if Parted Magic can save this hive to the external.



#9 Thoth_Dhwty

Thoth_Dhwty
  • Topic Starter

  • Members
  • 73 posts
  • OFFLINE
  •  
  • Gender:Male
  • Local time:02:45 AM

Posted 28 December 2016 - 12:42 PM

 Ok so I done a bootable UBCD and ran both Seatools for DOS and Disk Health with Parted Magic and none detects any drive other than the CD/DVD and the USB Flash drive.

 

 What do you suggest I do next ?



#10 JohnC_21

JohnC_21

  • Members
  • 22,592 posts
  • OFFLINE
  •  
  • Gender:Male
  • Local time:03:45 AM

Posted 28 December 2016 - 12:57 PM

Pull the drive and attach it to another computer via an enclosure or USB adapter such as this one. Power it on and feel if the drive spins up but I think you are looking at a new drive. If the drive spins up it may show in Windows. 

 

At the Parted Magic desktop open a terminal. The icon is at the lower left in the task bar with a > prompt. Type the following command

fdisk -l

This is a lower case "L" and not 1.

 

post the output.



#11 Thoth_Dhwty

Thoth_Dhwty
  • Topic Starter

  • Members
  • 73 posts
  • OFFLINE
  •  
  • Gender:Male
  • Local time:02:45 AM

Posted 28 December 2016 - 01:11 PM

root@partedmagic:~/Desktop# fdisk -l

 

Disk /dev/sda: 32.1 GB, 32094814208, 62685184 sectors

Units = sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk label type: dos

Disk identifier: 0x09af9570

 

Device Boot  Start  End  Blocks  Id  System

/dev/sda1 *    2048   62685183   31341568  c W95 FAT32 (LBA)

 



#12 JohnC_21

JohnC_21

  • Members
  • 22,592 posts
  • OFFLINE
  •  
  • Gender:Male
  • Local time:03:45 AM

Posted 28 December 2016 - 01:22 PM

The disk is detected but it shows as only 32GB. Is that the approx size of your USB flash drive? If so, then your hard drive is not detected and there is either a problem with the drive or the drive's connection to the motherboard.



#13 Thoth_Dhwty

Thoth_Dhwty
  • Topic Starter

  • Members
  • 73 posts
  • OFFLINE
  •  
  • Gender:Male
  • Local time:02:45 AM

Posted 28 December 2016 - 01:27 PM

 Yeah that is the flash drive.

 

 So after all this, it seems like the most obvious solution would have been to just open the laptop case and check connections.

 The HDD inside was loose from it's connection entirely. It looks like it's missing a screw which is supposed to hold it in place is not there so someone must have tampered with it, something I wasn't told about.

 I just reconnected the drive and it boots Windows now.

 

 Such a waste of time trying to fix something which didn't really need fixing, but at least I learnt something through all this process. Thanks a lot for teaching me about the UBCD, that is something really useful which I will keep around. Thanks for your time. Appreciate it!


Edited by Thoth_Dhwty, 28 December 2016 - 01:28 PM.


#14 JohnC_21

JohnC_21

  • Members
  • 22,592 posts
  • OFFLINE
  •  
  • Gender:Male
  • Local time:03:45 AM

Posted 28 December 2016 - 01:30 PM

Your Welcome, 

Stuff like that gives me grey hair and I have enough of that already. 

 

Have a Happy New Year and a peaceful one too.






0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users