After a virus, the boot files on a Windows 7 computer are gone, and I get this message when booting…
File: \Boot\BCD
Status: 0xc0000000f
Info: An error occurred while attempting to read the boot configuration data.
So I booted from my Windows 7 USB thumb drive and opened the command prompt. I mounted the drive with the OS install to the L: using diskpart
, and then I changed to the L: drive then typed the following
L:\>bootrec /fixmbr
Command completed succesfully
L:\>bootrec /fixboot
Command completed succesfully
L:\>bootrec /rebuildbcd
I say I want to add the Windows install on L: so I type Y hit Enter and I get The requested system device cannot be found
.
So how do I rebuild the Windows boot files; why can't the system device be found?
Below is a log of the commands I run as well as the windows usb install drives' attempt to repair it
When I click repair computer Windows scans for Windows Installs and then pops up this dialog
[[System Recovery Options]] <– Title
Text is…. (no '-' though)
————– Windows found problems with your computer's startup options. Do yo want to apply reparis and restart your computer?View deatails
Then the buttons
[Repair and restart] [No]
When I click View details I get another dialog
[[Systen Recovery Options]]
Repair details: (then a scroll box with the deatils) The following
startup option will be repaired: Name: {bootmgr} Identifier:
{9DEA862C-5CDD-4E70-ACC1-F32B344D4795}The following startup options will be added: Name: Windows 7 Home
Premium (recovered) Path: Windows Windows Device: Partition=D:
(595364 MB)Name: Windows Recovery Environment (recovered) Path:
Recovery\WindowsRE\Winre.wim Windows Device: Partition=C: (15000 MB)A copy of the current boot configuration data will be saved as:
C:\Boot\BCD.Backup.0002[Close]
So I click Repair and restart and get
A error dialog that says [[System REcovery Options]]
X Failed to save startup options
[Ok]
So I click Ok
and get the normal windows that allows you to retore from an image or
try and use recovery toolsSelected either options and clicking next gives me a dialog to Choose
a recovery tool and buttons at the buttom to shutdwon or restartSo I open cmd and type the following
Microsoft Windows [Version 6.1.7600]
X:\Sources>diskpart
Microsoft DiskPart version 6.1.7600 Copyright (C) 1999-2008 Microsoft
Corporation. On computer: MININT-8COAH39DISKPART> list volume
Volume ### Ltr Label Fs Type Size Status
Info ———- — ———– —– ———- ——-
——— ——– Volume 0 E DVD-ROM 0 B No Media Volume 1 C Recovery NTFS Partition 14
GB Healthy Volume 2 D OS NTFS Partition 581 GB
Healthy Volume 3 F Removable 0 B No
Media Volume 4 DELLUTILITY FAT Partition 100 MB
Healthy HiddenDISKPART> select volume 2
Volume 2 is the selected volume.
DISKPART> assign letter = l
DiskPart successfully assigned the drive letter or mount point.
DISKPART> exit
Leaving DiskPart…
X:\Sources>L:
L:>bootrec /fixmbr The operation completed successfully.
L:>bootrec /fixboot The operation completed successfully.
L:>bootrec /rebuildbcd Scanning all disks for Windows installations.
Please wait, since this may take a while…
Successfully scanned Windows installations. Total identified Windows
installations: 1 [1] L:\Windows Add installation to boot list?
Yes(Y)/No(N)/All(A):Y The requested system device cannot be found.L:>bcedit 'bcedit' is not recognized as an internal or external
command, operable program or batch file.L:>
Best Answer
Try these general steps: