Windows corrupt boot files ERROR 0xc000000f

[Adzkii]

I have corrupt boot files, I am unable to access my windows. I have tried every possible solution in the web. In fact I been searching the web for 2 days for any fix. I tried all the bootsec commands using the windows recovery disk. I also tried to rebuild the boot files using bootrec command. I also used the automated start up repair tool but no luck. I don't want to reinstall my windows so don't mention that as I have valuable files and programs I need. This was all unexpected, I turned on my pc and all I see is corrupt boot with the error 0xc000000f code. (Boot section is inaccessible) or \windows\system32\winload.exe is missing or corrupt. The repair tool shows (Missingosloader). I even rebuilt the whole boot sector using a article I found on the web. Any ideas? Please help me solve this as it's so stressing.

Please don't refer me to windows forum, they all have the same replies and I tried them all. My boot is only corrupted not my system files. I can be assure of that. Is there a way to fix this or completely remove the boot files and rebuild new boot files in a different way?

This was also tried but no luck either.

Diskpart command
List disk
Select disk 0
List partition
Select partition 2
Active

Bcdedit /export C:\BCD_Backup
c:
cd boot
attrib bcd -s -h -r
ren c:\boot\bcd bcd.old
bootrec /RebuildBcd

Repair attempt log:

I've been using bleachbit for the first time. I must of checked all "System" checkboxes, of coruse i did come across the warning pop up boxes but they were cool with me as long as it doesnt damage the boot or system files, i proceeded with cleaning which took almost 20mins (thats normal). After the clean up i rebooted my system and suddenly i come across a boot error 0xc000000f boot section is inaccessible and boot\bcd, missing or corrupt , luckily i had the windows recovery disk tool. I used the recovery tool to try to fix the boot problem but no luck. In fact i tried every possible solution on the web but still no luck. Almost 2 days and i still cant fix the windows system. Whats the issue? I mean this shouldn't happen since bleachbit is safe!
Sorry but i'm not walking out of here until someone has a fixed solution to get my system back to normal, because bleachbit literally destoryed my system lol

The worse thing is that windows recovery repair tool doesn't even recognise windows installation no matter how many times I build the bootsec using the windows recovery commands.

bootrec /fixmbr
bootrec /fixboot
bootrec /rebuildbcd
bootsect /nt60 all /force
I used other commands to rebuild the boot files can't exactly remember.

Startup Repair diagnosis and repair log
-----------------------------
Number of repair attempts: 1

Session details
-----------------------
System disk = \Device\Harddisk0
Windows directory = C:\Windows
AutoChk Run = 0
number of root causes = 1

Test performed:
--------------------------
Name: Check for updates
Results: Completed successfully. Error code = 0x0
Time taken = 0ms

Test performed:
--------------------------
Name: System disk test
Results: Completed successfully. Error code = 0x0
Time taken = 0ms

Test performed:
--------------------------
Name: Disk failure diagnosis
Results: Completed successfully. Error code = 0x0
Time taken =31ms

Test performed:
--------------------------
Name: Disk metadata test
Results: Completed successfully. Error code = 0x0
Time taken = 32ms

Test performed:
--------------------------
Name: Target OS test
Results: Completed successfully. Error code = 0x0
Time taken = 234ms

Test performed:
--------------------------
Name: Volume content check
Results: Completed successfully. Error code = 0x0
Time taken = 0ms

Test performed:
--------------------------
Name: Boot manager diagnosis
Results: Completed successfully. Error code = 0x0
Time taken = 0ms

Test performed:
--------------------------
Name: System boot log diagnosis
Results: Completed successfully. Error code = 0x0
Time taken = 0ms

Root cause found:
--------------------------
Boot manager failed to find OS loader.
Repair action: File repair
Result: Failed. Error code = 0x2
Time taken = 7161ms
Repair action: Boot configuration data store repair
Result: Failed. Error code = 0x2
Time taken = 0ms
----------------------------------------
----------------------------------------

Cheers.

 

[ICIT2LOL]

Hello and welcome Adzkii now first up some specs on that machine would be helpful
Now before we can help we do need to know what is in your machine so please do this System Info - See Your System Specs
or either enter the specs of your system in your forum profile the specs will appear when we click on that little box bottom left of the post screen it is for me the preferable option as it is easy. As you may appreciate it is very hard when you don’t know what one is working with for example a diesel or petrol engine.
*(pretyped to save time)

I see you are really not wanting to do a clean install and you have tried this MBR - Restore Windows 7 Master Boot Record ??

Now I am no expert but I am thinking it might have to be a clean install if the above did not work.

If you are concerned about recovering data etc then take a look at this and see if it might help to do that
BOOTABLE UBUNTU
Make a bootable Ubuntu disk Download Ubuntu Desktop | Download | Ubuntu
Set the BIOS to boot from the optical when the machine boots it will show you a screen with TRY or INSTALL > select TRY not INSTALL
When it is finished - it takes very little time you will get a screen like in the pic .
Open the drive you want > User and dig down until you get to the data / settings you may be able to copy / paste the material you want to an external source or other installed drive doing this.
I am not sure if it will but I have recovered tons of data etc using this method both on "dead" or just plain drives that you cannot get data from using Windows.

Or there is this Emergency Kit - save your files from a dead OS I prefer Ubuntu a tad easier to set up but this does the same thing

The pic is old and the UI of Ubuntu may be slightly different (I am unfortunately in hospital right now and cannot redo the pic) but it will still be the same principle.

For getting the drive hooked up to another machine I find a dock really the best but you can also install the drive into another machine or use a USB to SATA adaptor.

 

[samuria]

Is the disk uefi, mbr gpt ? What happend prior to this did you make any changes? is you disk set correct inthe bios changing it there can cause this. Boot install dvd repair and cmd prompt then test the disk with chkdsk c: /f

 

[Adzkii]

I think i have missing system32 files, my boot mbr is fine i assume. From repair logs you see some files from sys32 is missing like the osloader and drivers. I need help retrieving my system32 files. I managed to copy the files from my recovery disk to my c drive, so i recovered some system32 files (thanks to my recovery disk) but now whenever i try to boot into windows i get error 0xc0000428 ntoskrnl.exe i then proceed by pressing the enter key, it takes me to f8 advance boot options, that error i mentioned is invalid driver signature on ntoskrnl.exe (which i have no idea whats caused this) okay now on the f8 menu, i click the option "Disable Driver Signature Enforcement" (i know its temp disable), so after continuing on with that option i come across with another error \windows\system32\drivers\spldr.sys missing or corrupt 0xc000000f so i check if i have that driver which i dont so its missing. That specific driver is not windows driver so its not in my recovery disk, so i cant copy it to my windows drive (c: ). Conclusion: i managed to retrieve windows default sys32 files and drivers but i cannot find any other drivers. Total conclusion:, i have no idea what window wants from here. I need help.

My pc is HP pavilion uk. with amd x4 465 cpu with nvidia integrated video graphics card. Sorry but i just dont want to do the long procedure with ubuntu installation as i dont have another laptop or pc. My only help is my recovery disk with command prompt.

 

[Adzkii]

My disk is set correct in my bios, its not uefi, its mbr i think. I have done chkdsk command also the sfc command dont work "There is a system repair pending which requires reboot to complete. Restart Windows and run sfc again" or "Windows Resource Protection not working", something along that line.

SFC /SCANNOW /OFFBOOTDIR=C:\ /OFFWINDIR=C:\Windows
Dont work either with the similar windows resource protection error

I tried using this command to disable driver signing checks so i can bypass the ntoskrnl.exe error but no luck.

bcdedit.exe -set loadoptions DDISABLE_INTEGRITY_CHECKS
bcdedit.exe -set TESTSIGNING ON

both return the same:
"An error occurred while attempting to reference the specified entry.
The system cannot find the file specified."

I know there has to be a solution to this without formatting. I can pop down to my friends house and burn some custom recovery tools like easyre but i will keep this option to the end.

 

[ICIT2LOL]

Well to find whether the disk is MBR or GPT you only have to open a command prompt and run DISKPART see pic

The BIOS will be either Legacy or EUFI the difference is really very obvious when you open it up and if we had the machine specs we could tell you straight up - it is hard working not knowing what we are dealing with.

I take it you are using safe mode to run those sfc and chkdsk scans?

Also I personally do not like using any add on softwares to identify issues unless I am perfectly certain they are safe.

 

[samuria]

You say I managed to copy the files from my recovery disk to my c drive if the recovery drive wasnt the same version and windows that will mess it it ie if recovery was before a service pack and you have a service pack on pc they will be totaly wrong files.

You best chance may be to get free disk undelete software and see if you can recover any files or you could try Rescue Kit 14 Free Edition - Overview and try boot fix

 

[Adzkii]

Its a desktop HP pavilion p6300uk 2010 or 2009 model.
No, i cant access nothing nor the safe mode or last known successful boot configuration. Im using windows installation recovery disk to use the command prompt.

 

[Adzkii]

Yeah i am on service pack, you might be right on recovery disk and sp compatibility but still i cannot be sure what the errors want.

I still want to leave those options last, right now i need solutions for what i got right now and thats my recovery disk. How can correct the sys32 drivers or even bypass ntoskrnl error. Even if i copied the old files (before sp) how can i get the sp windows 7 sys32 files on the web? All i need are the files to boot to my windows, from there i will fix all the corrupted files.

 

[ICIT2LOL]

Ok well best try what Samuria has suggested as what he has said may well be messing the system even more.

Just had a look at the specs too HP Support document - HP Support Center and would like to know just what that RAM is as it says 3GB and that is an odd number to me at least. Plus it states it can be DDR3 or DDR2 . I just would like to know too is the hard drive the original one or have you replaced it at some time? If it is the original drive then it is possible the drive is going south and may be the cause of the problems because if the surfaces of those platters are worn or the read/write arms are not functioning properly then it may again be a cause of the issues .

 

[Adzkii]

My harddrive seems to be fine, i took some tests before all this happened and this wasn't long ago. So i dont think i have any issues with the harddrive. And what you see hp page is right. The pc came with 3gb ram on ddr3 (1gb stick and a 2gb stick) but i upgraded my ramsticks long ago to 4gb.

 

[Adzkii]

I need sys32 drivers that support win7 64bit on sp i think that may solve just the boot issue. All i need is to get access to my windows, from there i can fix all the critical system files and the sfc command.

 

[ICIT2LOL]

Sorry late reply now have you tried anything like this MBR - Restore Windows 7 Master Boot Record if not then it is worth a shot.

 

[Adzkii]

Yes i have corrected my boot record. In my previous i mentioned that my system files are missing, is it possible to get win7 x64 sp .sys files?

Right now the boot manager is showing ntoskrnl.exe (0xc000048) signature error and spldr.sys driver is missing ,(0xc00000f) where can i find these files, can anyone with win7 x64 sp provide me with these files?


Cheers.

 

[Adzkii]

I will provide as much error logs as possible.

Boot critical file c:\windows\system32\drivers\spldr.sys is missing
Repair action: File repair
Results: Failed. Error code = 0x2
Time taken = 8814ms

Repair action: system files integrity check and repair
Result: Failed error code = 0x2
Time taken = 7067ms
---------------------------------------------------------

Boot critical file c:\windows\system32\ntoskrl.exe is corrupt
Repair action: File repair
Result: Failed. Error code = 0x2
Time taken = 7941ms
Repair action: System files integrity check and repair
Results: Failed. Error code = 0x2
Time taken = 7879ms

Sorry im using my mobile to type all this down as im locked out of my pc and i need all possible help on this.

 

[ICIT2LOL]

Ok have a look at this it is probably worth a try and if you have any queries re this fix then post in that thread/tutorial - Brink is a brilliant fellow and will help you with any problems.

Repair Install it is what I would try and it doesn't mean your data programs etc will be lost.

If push comes to shove then there are ways of retrieving your data I can link you to before you do that if you so wish.

 

[Adzkii]

Thats one way maybe key to solve this but i cannot access the pc nor eownload anything as i dont have any devices.

 

[ICIT2LOL]

Ok so I am assuming you have no installation media ie a Microsoft DVD??

 

[Adzkii]

Right now the boot manager is showing ntoskrnl.exe (0xc000048) signature error and spldr.sys driver is missing ,(0xc00000f) where can i find these files, can anyone with win7 x64 sp provide me with these files?

I only have the windows vista/7 repair disk.

 

[ICIT2LOL]

Ok mate now if you have an activation code for the 7 version then you can download an ISO of the version of 7 from an official Microsoft site.

But before that I suggest you post an answer in this tutorial first Clean Install with a Upgrade Windows 7 Version and describe what you have got and if this tutorial will be what you can use.