CHKDSK: File System is RAW

January 22, 2010 at 07:02:38
Specs: Windows XP

Apologies if I am posting this in the wrong section of the forum. Wasn't sure of the correct place.

I have a PC running Windows XP and have recently suffered a virus and browser hijack attack. I've managed to clear this up (i think).

However, I noticed after running the CHKDSK that I am now getting a message on startup along the lines of "The type of the file system is RAW. AUTOCHK not available."

What does this mean, and what should I do about it?

Thanks.


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#1
January 22, 2010 at 07:31:31

What drive is it trying to check? Can you boot to Windows? How did you remove the virus?

LIR


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#2
January 22, 2010 at 07:34:49

It means you have some unallocated Drive space on your HDD that has not been setup with a partition or that the space is using an unknown partition type like EXT3. May have been how the virus hid its self. To fix this...

Start -> Right-Click "My Computer" -> Click "Manage" -> Go To "Disk Management" -> Look for a block on your hard drive that says "RAW" -> Right Click it and click create partition -> Use the defaults when going through the Wizard.

http://support.microsoft.com/kb/309000

Make sure you are only working with unallocated space and not any healthy partition because you could wipe out your data.


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#3
January 22, 2010 at 10:27:21

What drive is it trying to check?

C Drive

Can you boot to Windows?

Yes, can run PC normally. I just get this message on startup.

How did you remove the virus?

A combination of Microsoft Malicious Software Removal Tool and Webroot Antivirus/Spyscanner. The spyscanner picked up the virus (others didn't) and the Removal Tool removed it (or seems to, scanner no longer detects it). See my post in the Virus forum here :http://www.computing.net/answers/security/help-with-virusspyware-removal/28775.html

Disk Management:

I have tried your suggestion. I cannot see anything that states "RAW" within the disk managment window. Where should I be looking? What should I be looking for? All I see is the following info:

Volume: C-drive designation
Layout: Partition
Type: Basic
File System: FAT32
Status: Healthy (System)
Capacity: 183.72 GB
Free Space: 139.46 GB
% Free: 75%
Fault Tolerance: No
Overhead: 0%

Then below that is a list of Disks: the C drive, removable media drives F, G, H, I, J and two CD ROM drives D and E


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Related Solutions

#4
January 22, 2010 at 10:32:54

One or more of the removable drives may have un-formatted media inserted. Check any card readers or flash drives. remove any disks from your CD drives.

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#5
January 22, 2010 at 12:25:27

Thanks. No disks in any of the drives. Only removable media I have is an external hard disk. Only have documents on this. It is not attached to PC at the moment. Hasn't been for a few days.

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#6
January 22, 2010 at 15:11:59

Then what are these?

removable media drives F, G, H, I, J and two CD ROM drives D and E

Does your External drive have multiple partitions?

Do you have a card reader?


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#7
January 22, 2010 at 15:43:50

No idea. I've never looked at this before. Part of the PC setup for all I know.

Looking at the My Computer directory, it shows:

D drive is DVD RW Drive
E drive is DVD Drive:
F is for Smartcard
G, H, I and J are labelled Removable Disk

Could these be for printers? Cameras maybe? Or the USB hub connected to the PC? The only things we have ever used via the hub are the external hard drive, a DVDRW (rarely used) and an ipod. This is a family PC used by 2 people. We don't use it for much beyond emails, basic online access, simple document storage.

When I switch on the External Hard Drive I get a new drive K appearing through which hard drive data is accessed.

It is not partitioned as far as I can tell.

Looking at the external hard drive through the Computer Management window it shows me:

Volume: K drive designation
Layout: Partition
Type: Basic
File System: FAT32
Status: Healthy
Capacity: 233.70 GB
Free Space: 164.46 GB
% Free: 70%
Fault Tolerance: No
Overhead: 0%


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#8
January 22, 2010 at 15:49:39

What is your smart card?

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#9
January 22, 2010 at 16:00:03

Don't know. Never used one. This is just the label of the drive.

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#10
January 22, 2010 at 16:08:09

G, H, I and J are labelled Removable Disk

Do those drive letters show in My Computer? If so, try to open them and see what is up with them.


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#11
January 22, 2010 at 16:11:58

Yes all of them show all the time except for the K drive (used by external hard drive).

Clicking on them it asks me to insert a disk into the drive.


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#12
January 22, 2010 at 16:18:57

Sounds like those may be drive letter assignment for the hardware you mention.

Do you have a full version WinXP CD?

If so, You can try to run Scannow SFC to replace any missing or corrupted system files. Look at the links below.

http://support.microsoft.com/kb/310747

http://www.microsoft.com/resources/...


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#13
January 22, 2010 at 16:38:55

Not sure. I'll need to look through my disks and check with family who also use the PC.

No doubt I'll post back with more questions.

Thanks for the help.


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#14
January 25, 2010 at 03:30:59

Well, surprise surprise we don't have this. The disks that came with the PC are labelled System and Drivers CD and Reload Backup CD.

Neither disk holds the Scannow SFC you mention.

Any other ideas? I can run the PC ok, even with this message. What are the risks if I do? Does anyone know?


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#15
January 25, 2010 at 04:37:42

I can't say for sure but I would guess that it is just an annoyance.

You could backup your personal files and then restore to factory settings by using the disks you do have.

It sounds like everyone that uses the PC is using the same user profile. You would be better of to each have your own log-in an user profile. If someone has caused this message to appear it would probably only be showing when their profile was in use.


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#16
January 25, 2010 at 07:08:49

Before you do a complete system restore do you have a SD Card reader in your computer. The multi-SD card readers will mount drive letters to each card even if there is not card in the slot.

It could be one of these...

http://www.google.com/products?hl=e...


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#17
January 25, 2010 at 07:13:00

Thanks.

We do each have our own user profile in XP.

The message appears right at startup of the PC, before we even get to choosing the user account to open.

I'll keep researching the problem. Thanks for trying to help.


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#18
January 25, 2010 at 07:15:19

Yes, there is an in-built SD card reader. I don't think we've ever used it.

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#19
January 25, 2010 at 07:16:12

You never responded to my question of ace's question. Do you have a USB card reader?

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#20
January 25, 2010 at 07:23:55

Didn't see the question. No we don't have one via USB.

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#21
January 25, 2010 at 08:09:34

I think the confusion is that because it is an internal and Linafae did not realize that even internal SD Readers us USB so answered NO to the question.

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#22
January 25, 2010 at 08:17:06

No, I didn't know that. SD reader came with the PC. It was not something that I planned to use. So haven't looked into how it works.

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#23
January 25, 2010 at 08:23:41

NP, this is why I asked the question in the way I did. Still does not answer why you are getting a RAW partition when running CHDSK. Can you post the exact command you are running; you may have just not specified a drive letter?

If you are only running it on startup then go to the command prompt and type...

chkdsk c: /f

and tell us if you are getting the same error.


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#24
January 25, 2010 at 08:43:45

I'm not sure I follow you.

The only way I know to do disk check scans is via Start-All Programs-My Comuter - right-click on the C Drive and select Properties, choose Tools then click Check Now under Error Checking.

Is this known by another term, i.e. not chkdsk?

This is the only disk checking scan I have ever attempted.

On trying your suggestion I am getting "The type of the file system is RAW. Cannot lock current drive. CHKDSK is not available for RAW drives".

I don't understand. If I've never used this drive, how is it suddenly causing a problem?


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#25
January 25, 2010 at 09:01:26

To get to the command prompt...

Click Start -> Select Run -> Type CMD -> and a black terminal window will open allowing you to type system commands.

You still may have a partition that has not been setup on your main drive. You have two option, do as Otthehill has suggested which is backup your local files and reinstall your entire system or get an expert to look at your drive and to setup the RAW partition for you. The problem may be that the LDM database has gotten messed up which requires a high level of computer knowledge to fix. Check this out..

http://www.google.com/search?client...

To do this you have to have a CD burner or an external drive to backup your user files to. Then if you want to use Microsoft's backup tool look here..

http://support.microsoft.com/kb/308422

If you still think it is the SD-Card reader then open you box and disconnect the cord to the drive. Then try it again. This will rule it out.

As OtTheHill stated, this may just be an annoyance and you may just choose to ignore it rather than rebuild your system from scratch. The problem is your drive may be failing so I would stil suggest getting an expert to look at it.

Good luck.


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#26
January 25, 2010 at 09:28:36

Ok, thanks. I'll think it all over and try to find someone trained that can look over the PC.

Many thanks for the help guys. Much appreciated.


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