Windows 7 Forums

Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.


Windows 7: windows 7 boot loader missing/corrupt

03 Nov 2010   #31
gregrocker

 

Quote   Quote: Originally Posted by chbell10 View Post
I ran the partition wizard Boot cd, and all of the partitions are NTFS, and the drive letters don seem to show,as opposed to the drive labels?
But, when i did what MJF suggested, it came up like this:

Volume--ll---Letter----ll----Label----ll--Filesystem---ll----type----ll----size----ll----status
__________________________________________________________________________
----0-----------G---------Cd-rom---------CDFS---------dvd-rom----3562MB-----Healthy
----1-----------D-----------new------------NTFS---------partition-----227GB------Healthy
----2-----------C----------system RESE-----NTFS---------partition-----100MB------Healthy
----3-----------E-------------C------------NTFS---------partition-----235GB------Healthy
----4-----------F-------------SR-----------NTFS---------partition-----2933MB-----Healthy

Windows has always been C:, as far as i have known, and This is the only HDD i have ever used with this build.
And as stated above, the 100mb system reserved partition is there.
Also, when i tried to run the "rebuild BCD" option, under disk>rebuild MBR, the option itself is unusable for some reason?
I do not see where your System Reserved partition C is marked Active. I see it's label is System Reserved, but does it also carry the System flag? Either way, it must be marked Active to repair correcctly.

Check again with Partition Wizard bootable CD that System Reserved is marked Active. If not, rightclick it to Modify>Set to Active.

Then boot the Win7 DVD Repair console to run Startup Repair up to 3 separate times with reboots.


If this fails, boot back into PW CD, rightclick SysReserved to Modify>Set to Inactive and then mark the Win7 partition Active to try the repairs again. This will eliminate possible corruption of SysReserved and write the MBR to Win7 partition itself.


My System SpecsSystem Spec
.
04 Nov 2010   #32
mjf

Windows 7x64 Home Premium SP1
 
 

Quote   Quote: Originally Posted by gregrocker View Post
Quote   Quote: Originally Posted by chbell10 View Post
I ran the partition wizard Boot cd, and all of the partitions are NTFS, and the drive letters don seem to show,as opposed to the drive labels?
But, when i did what MJF suggested, it came up like this:

Volume--ll---Letter----ll----Label----ll--Filesystem---ll----type----ll----size----ll----status
__________________________________________________________________________
----0-----------G---------Cd-rom---------CDFS---------dvd-rom----3562MB-----Healthy
----1-----------D-----------new------------NTFS---------partition-----227GB------Healthy
----2-----------C----------system RESE-----NTFS---------partition-----100MB------Healthy
----3-----------E-------------C------------NTFS---------partition-----235GB------Healthy
----4-----------F-------------SR-----------NTFS---------partition-----2933MB-----Healthy

Windows has always been C:, as far as i have known, and This is the only HDD i have ever used with this build.
And as stated above, the 100mb system reserved partition is there.
Also, when i tried to run the "rebuild BCD" option, under disk>rebuild MBR, the option itself is unusable for some reason?
I do not see where your System Reserved partition C is marked Active. I see it's label is System Reserved, but does it also carry the System flag? Either way, it must be marked Active to repair correcctly.

Check again with Partition Wizard bootable CD that System Reserved is marked Active. If not, rightclick it to Modify>Set to Active.

Then boot the Win7 DVD Repair console to run Startup Repair up to 3 separate times with reboots.


If this fails, boot back into PW CD, rightclick SysReserved to Modify>Set to Inactive and then mark the Win7 partition Active to try the repairs again. This will eliminate possible corruption of SysReserved and write the MBR to Win7 partition itself.
Note my screen shot. My active system reserved doesn't show active. "Diskpart >list volume" only shows one word under Info "System" likewise for the partition that has "Boot" next to it.

If you want to make sure you can do it in the command line (refer my screenshot)
ATTEMPT 1:
To make sure it's active
For you in Diskpart:
>select volume 2
>active
-----------------------------------
ATTEMPT 2:
To make it inactive
>select volume 2
>inactive
& OS/Boot partition active
>select volume 3
>active

Then try the startup repair x3 as suggested by gregrocker.
If this all fails I would still do:

Bootrec /rebuildbcd

Then call it a day.
My System SpecsSystem Spec
04 Nov 2010   #33
chbell10

Windows 7 Ultimate x64
 
 

After I tried all of your solutions, the computer now knows that windows is on the hard drive,and attempts to boot it.
alas, this is the error message given :

Windows failed to start. A recent hardware or software change might be the cause. To fix the problem:
1. Insert your windows installation disk and restart your computer.
2. Choose your language settings and click "next".
3.Click "repair your computer".

If you do no have this disk, Contact your system administrator, or computer manufacturer for assistance.
File: \Boot\BCD
Status: 0xc000000f
Info: An error occurred while attempting to read the boot configuration data.
---------------------------------------------------------------------------------------------------------------

So, with that in place, I rebooted into the Win7 repair disk, with no progress at all.
I remembered to boot 3 times with the startup repair, but there is no change.
Any Ideas?

(i want to thank you all again, for being so persistent, and helpful with my dilemma.)
My System SpecsSystem Spec
.

04 Nov 2010   #34
mjf

Windows 7x64 Home Premium SP1
 
 

Quote   Quote: Originally Posted by chbell10 View Post
After I tried all of your solutions, the computer now knows that windows is on the hard drive,and attempts to boot it.
alas, this is the error message given :

Windows failed to start. A recent hardware or software change might be the cause. To fix the problem:
1. Insert your windows installation disk and restart your computer.
2. Choose your language settings and click "next".
3.Click "repair your computer".

If you do no have this disk, Contact your system administrator, or computer manufacturer for assistance.
File: \Boot\BCD
Status: 0xc000000f
Info: An error occurred while attempting to read the boot configuration data.
---------------------------------------------------------------------------------------------------------------

So, with that in place, I rebooted into the Win7 repair disk, with no progress at all.
I remembered to boot 3 times with the startup repair, but there is no change.
Any Ideas?

(i want to thank you all again, for being so persistent, and helpful with my dilemma.)
Show the current status of your disk. What's active & inactive
Did you ever run "bootrec /rebuildbcd"
My System SpecsSystem Spec
04 Nov 2010   #35
chbell10

Windows 7 Ultimate x64
 
 

I get that error message while active with volume 2.
And "bootrec /rebuildbcd" still comes back with the same error message from the very beginning of the issue, with "the requested system device cannot be found."
And the installation is still apparently found on E:, which i assume by it saying:

Total identified windows installations: 1
[ 1 ] E:\Windows
add installation to boot list? [y] /[n] /[a]:y
The requested system device cannot be found.

X:\sources>
------------------------------------------------------------------------
My System SpecsSystem Spec
04 Nov 2010   #36
mjf

Windows 7x64 Home Premium SP1
 
 

I must leave for a while but in the meantime.
I assume
1) you have backed up your data
2) you are still trying to recover before a clean install

Do (1) because a clean install is looking the simplest way ahead.

But if you wish to continue...
Booting from the repair disk and entering command prompt you should see
X:\WINDOWS\SYSTEM32>
type
bcdedit
this will output the BCD store information on the active partition
1) Note the output
2) From your last post, you indicate that the 100MB partition is the only active partition. Then
X:\WINDOWS\SYSTEM32>bootrec /rebuildbcd
should work

If you've tried all the other suggestions and you've saved your data then is there a reason not to do a clean install?

Paragon Rescue Kit 10.0 (free) is useful for extracting your data if you haven't already done so.
My System SpecsSystem Spec
04 Nov 2010   #37
gregrocker

 

Quote   Quote: Originally Posted by gregrocker View Post

Check again with Partition Wizard bootable CD that System Reserved is marked Active. If not, rightclick it to Modify>Set to Active.

Then boot the Win7 DVD Repair console to run Startup Repair up to 3 separate times with reboots.


If this fails, boot back into PW CD, rightclick SysReserved to Modify>Set to Inactive and then mark the Win7 partition Active to try the repairs again. This will eliminate possible corruption of SysReserved and write the MBR to Win7 partition itself.
Did you follow all of the steps given above?

When you ran Startup Repair with the System Reserved partition marked Active, were any other partitions marked active at the time?

When this failed, did you mark System Reserved partition Inactive and mark Win7 partition Active, then run Startup Repair up to 3 separate times with reboots?

I would use free Partition Wizard bootable CD for these operations so you have a graphical picture of what you are doing.
My System SpecsSystem Spec
04 Nov 2010   #38
chbell10

Windows 7 Ultimate x64
 
 

For both volumes, 2 and 3, I received the output :

The boot configuration data store could not be opened.
The requested system device could not be found.
---------------------------------------------------------------

But, when I open my command prompt with shift+F10 my Prefix is : "X:\sources>"
Not "X:\WINDOWS\SYSTEM32>"

And Greg-yes, I did all of the things you suggested in your post, but it seems like there was no change in the output of the Boot -__________-

I have backed up all of my data, Buuut it's not letting me access said backup data-so i figure i'll just purchase an external HDD, and boot into Ubuntu live, and do what I can with that.(If of course, it comes to that)
My System SpecsSystem Spec
04 Nov 2010   #39
gregrocker

 

The X prompt from DVD is for its own tools on the DVD. You are not reaching into Win7 but working from Windows Recovery Environment.

You may have a corrupted boot sector that is irreparable. Best to wipe the HD to reinstall Win7. SSD / HDD : Optimize for Windows Reinstallation

Try to place Ubuntu on another HD so you can boot via BIOS and don't need to use GRUB since it corrupts Win7 a lot.

See if you can copy out your files to DVD or external using Win7 DVD: Copy & Paste - in Windows Recovery Console
My System SpecsSystem Spec
05 Nov 2010   #40
mjf

Windows 7x64 Home Premium SP1
 
 

Back.
I was actually working from the DVD Windows recovery environment (Winre) to emulate your situation, X prompt etc.... Neither here nor there now.

So I think the resolution is finally get your data & clean install.

I didn't understand your last comment with respect to data recovery.

"I have backed up all of my data, Buuut it's not letting me access said backup data-so i figure i'll just purchase an external HDD, and boot into Ubuntu live, and do what I can with that.(If of course, it comes to that) "

Getting your data should be straight forward with a bootable CD like Puppy linux or Paragon Rescue kit.
My System SpecsSystem Spec
Reply

 windows 7 boot loader missing/corrupt




Thread Tools




Similar help and support threads
Thread Forum
Can't Boot or repair - NETIO.SYS missing/corrupt
I returned home today to find my computer off and not able to boot. My wife said all she had done was web browsing and then sleeping the computer. At this time the computer tried to Auto-repair the startup but would cyclically fail (indicating an issue with NETIO.SYS). I performed the following...
BSOD Help and Support
Dual boot WinXP/7 - How to hide Windows 7 from boot loader and XP?
Working in a corporate environment, we use Windows XP now but are needing to upgrade to Windows 7. I have dual boot Windows XP and 7 machine, thats the easy part, but I need to hide Windows 7 from the boot menu OR have a keyboard shortcut that can boot Win 7. The goal is I do not want users to...
Installation & Setup
BIOS Update - Boot Loader Missing
I am for sure gonna get kicked out of this forum for being so annoying. I hope not, because some of the smartest people I have found are in this great forum. Anyway, I did something I know was newbie-stupid wrong. I tried the ASUS EZ Update from within Win 7 to update my ASUS Crosshair V Formula...
Hardware & Devices
Issues with recovery and missing boot loader
Ok, I read over this forum, and tried several of the options. My issue: Boot loader is missing from HD. I entered the windows repair from dvd, and it finally showed the windows installation, C:\Windows (recovered). Tried selecting it again to have windows reinstall MBR, but now it says...
Installation & Setup
Win 7 boot files missing or corrupt
I have an Advent Roma 2001 configured, in PC World style, with a "recovery partition" alongside the system partition and, after resolving a hard disk problem, I found that the machine would not start/boot Windows 7. clearly some necessary files are missing or corrupted, but the normal system...
Performance & Maintenance
Unable to boot W7, Bootmanager is missing or corrupt. Error0x15
Hello. I am happy owner of Windows 7 32bit. About 1 week ago, something gone wrong (no idea what happened), and Windows was unbootable. I somehow managed to have fun with CHKSDK and sfc /scannow commands in command prompt and it somehow worked so I was able to format my Drive with hope it will...
Installation & Setup


Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 12:36.
Twitter Facebook Google+ Seven Forums iOS App Seven Forums Android App