I'm getting quite a few errors like: The device, Device Harddisk0 DR0, has a bad block. And The driver detected a controller error on.

While I was trying to find out why the main disk is performing a form of unexpained 'thrashing'(while there was no RAM issue), freezing up apps temporarily, I found a relevant error in the logs: 'The driver detected a controller error on Device Harddisk1 DR1' and I'm trying to find which drive it is. However, from device manager and disk management, the main disk is '0' and there are informational mentions in the logs of dr0 when I enable/disable write caching so it does recognize 0 as different from dr1. Driver Printer Hp Deskjet F2276 All In One more. Howevever, the computer has no other disk that I know of and if I open it up while it does have a space for it (laptop), it has no connections for a new one. I wonder if it's a 'hidden' device of some sort or a problem with the manufacturer's blocking of connections.

In any case I'd like to find out which that device is precisely. On device manager, DVD drive is mentioned as 'CD ROM 0' when I use 'Populate' in the Volumes tab of its properties and similarly HDD reports disk 0. I still wonder though if for some reason the dvd drive is considered as disk 1 but there's no confirmation of it anywhere. Any other devices such as USB drives etc. Are shown as 2, 3, 4 etc. On drive management.

Also looking in HKEY_LOCAL_MACHINE I can only see HKEY_LOCAL_MACHINE HARDWARE DEVICEMAP Scsi Scsi Port 0 Scsi Bus 0 Target Id 0 Logical Unit Id 0 as PhysicalDrive2 which is a bit weird now that I think of it. That location also confirms the model of the main known drive. When changing write caching settings Device Harddisk0 DR0 is reported on logs (as an information of the change) so Device Harddisk0 DR0 is considered by the system different from Device Harddisk1 DR1.

Run the following PowerShell command as Administrator: Get-PhysicalDisk Select -Prop DeviceId,FriendlyName,SerialNumber This will show output like: DeviceId FriendlyName SerialNumber -------- ------------ ------------ 1 ST1000DM003-9YN162 S1D2RPMB 5 ST1000DM003-1CH162 Z1D3CPP3 2 ST1000DM003-9YN162 S1D34BYN 0 Corsair Force LS SSD 01017402C2 4 WDC WD10EFRX-68PJCN0 WD-WCC4J9CC8112 3 Samsung SSD 950 PRO 256GB 0025_3853_61B0_3DD0. The DeviceId corresponds to the N in the Device HardDiskN path. This command is useful when you are using Storage Spaces, which can prevent the physical disks from appearing in the tools referenced in the other answers, like DiskPart. 1 please include a paste of the output of dd --list.

For me it doesn't quite show that. Device HarddiskVolume1 diskpart shows disk0 and disk1. Driver Impressora Hp 3535 Windows 7 64 Bits. Dd claims HarddiskVolume1 is not mounted, and I believe it(that volume1 whatever that is isn't mounted) but then I think that means that the paging error from my event viewer Device Harddisk1 DR5 (which relates to one or the other mounted hard drive, my internal one or the external one, both are moutned) so the error is not related to HarddiskVolume1 dd --list is not showing the hard disk number, but the volume number. – Jan 23 '15 at 17:58 •. You can also do this as administrator: C: windows system32>diskpart Microsoft DiskPart version 6.1.7601 Copyright (C) 1999-2008 Microsoft Corporation.

On computer: COMPUTERNAME DISKPART>list disk Disk ### Status Size Free Dyn Gpt -------- ------------- ------- ------- --- --- Disk 0 Online 476 GB 11 GB Disk 1 Online 59 GB 0 B DISKPART>sel disk 1 Disk 1 is now the selected disk. DISKPART>list part Partition ### Type Size Offset ------------- ---------------- ------- ------- * Partition 1 Primary 59 GB 0 B. I was hunting for device harddisk1 dr2 This will be the 2nd disk listed in diskpart: DISKPART>list disk Disk ### Status Size Free Dyn Gpt -------- ------------- ------- ------- --- --- Disk 0 Online 476 GB 3072 KB Disk 1 Online 2794 GB 0 B Disk 2 Online 2794 GB 7168 KB Disk 3 Online 3726 GB 7168 KB DISKPART>sel disk 1 Disk 1 is now the selected disk. DISKPART>detail disk WD My Book 1130 USB Device Disk ID: 0002DCC8 Type: USB Status: Online Path: 0 Target: 0 LUN ID: 0 Location Path: UNAVAILABLE Current Read-only State: No Read-only: No Boot Disk: No Pagefile Disk: No Hibernation File Disk: No Crashdump Disk: No Clustered Disk: No Volume ### Ltr Label Fs Type Size Status Info ---------- --- ----------- ----- ---------- ------- --------- -------- Volume 3 H Partition 2794 GB Healthy Notice 'WD My Book 1130 USB Device' and the 'H' under Ltr. Device harddisk1 dr2 is drive H.

Hi Elvandil thanks for replying ) yes it is a new drive.have a backup Just made a clean install, this time with intel_msm_8.9.4.1004-full() drivers (the 64bit loaded under the installation) install INF Update Utility Ver:9.1.1.1025 then msm_8.9.4.1004 and it working fine. Install a couple of games and its runing nice ( 264Mb/s read in crystaldiskmark2.2) then. I plug in my netkable and As soon as i setup my network, Windows 7 prompt me to select the type of location. Once i select Home Network, (Windows 7 will start applying the necessary settings for my new network) i register windows 7 no problem but after ca 10 min the errors is back..