Boot Error 0xc000007b - acpiex.sys missing or corrupted

I have a Windows 10 Anniversary Update build 1607 and Windows XP Pro SP3 Dual-Boot on my Samsung N150P Netbook.

I had been getting this boot error since few days. I remember plugging a USB drive on my laptop, which was bootable but had no OS extracted there. I booted my laptop while the usb was plugged and the BIOS showed "Invalid disk", so I unplugged the usb and I was booted to boot menu to choose which OS to boot. I selected WinXP and then XP took me to CHKDISK. I did the CHKDISK thing and from what I saw, It removed some kind of files from the disk that had Win10 installed.

After chkdisk, WinXP and everything else worked....except Win10. I now can't boot to Win10. Booting Win10 shows this error code - "0xc000007b" and acpiex.sys file missing from C:\Windows\system32\drivers\acpiex.sys.

I booted to WinXP to check if the file is really present or not, to see it's there. The file is there and all well. But the Win10 still says it's corrupted.

I even tried booting to Win10 install disk and using Startup Repair from there. After waiting for 8 minutes of "Attempting Repair", it still had the error.

Anyone can help me in this situation? I would really appreciate it. Thanks!

Here's the mentioned file's properties dialogue -

bump, if it's allowed. still looking for help!

Please boot your computer with Windows Setup Media and from Windows Recovery Environment start the Command Prompt.

Please type below command into Command Prompt and press Enter key.

The following command scans integrity of all protected Windows system files and repairs files with problems when possible.

Code:

Sfc  /Scannow   /OFFBOOTDIR=D:\   /OFFWINDIR=D:\Windows

Please replace partition letter D: with Windows installed partition letter. When computer boots into Windows Recovery Environment (WinRE) environment the drive letter assign to Windows partition may not be C: drive letter because Windows 7, 8 , 8.1 and 10 creates a separate system partition when it's installed from scratch. The system partition contains boot files WinRE assigns the system partition the C: drive letter and the Windows installed partition will be assign any other drive letter usually D: drive letter is assign to Windows installed partition. The Bcdedit /enum | find "osdevice" command can be use to find out the drive letter of the Windows installed partition the output of the Bcdedit command is similar to this osdevice partition=D:. The drive letter after partition= is the drive letter of the Windows partition.

FreeBooter said:

Please boot your computer with Windows Setup Media and from Windows Recovery Environment start the Command Prompt.

Please type below command into Command Prompt and press Enter key.

The following command scans integrity of all protected Windows system files and repairs files with problems when possible.

Code:

Sfc  /Scannow   /OFFBOOTDIR=D:\   /OFFWINDIR=D:\Windows

Please replace partition letter D: with Windows installed partition letter. When computer boots into Windows Recovery Environment (WinRE) environment the drive letter assign to Windows partition may not be C: drive letter because Windows 7, 8 , 8.1 and 10 creates a separate system partition when it's installed from scratch. The system partition contains boot files WinRE assigns the system partition the C: drive letter and the Windows installed partition will be assign any other drive letter usually D: drive letter is assign to Windows installed partition. The Bcdedit /enum | find "osdevice" command can be use to find out the drive letter of the Windows installed partition the output of the Bcdedit command is similar to this osdevice partition=D:. The drive letter after partition= is the drive letter of the Windows partition.

Have just tried that. Used DISKPART and list volume to get my disk partition where Win10 was installed and used the command you gave me on WinRE booted from Windows 10 Installation Media. After 30 something minute, I got this message

"Windows Resource Protection found corrupt files but was unable to fix some of them. Details are included in the CBS.Log windir\Logs\CBS\CBS.log. For example C:\Windows\Logs\CBS\CBS.log. Note that logging is currently not supported in offline servicing scenarios."

Any idea what to do next? Thanks.

Attached a pic of the cmd output (sorry for grainy garbage quality)

Execute following command:

Code:

Dism /image:F: /Cleanup-Image /Restorehealth  /LimitAccess

FreeBooter said:

Execute following command:

Code:

Dism /image:F: /Cleanup-Image /Restorehealth  /LimitAccess

Did it. First executed the command you gave me. Successfully completed. But boot error still there. So after that command, I executed the sfc command and still got the same error of wasn't able to fix error. But this time my error changed. Now disk.sys file is missing and I don't see acpiex.sys missing error.

I checked the disk.sys again by booting to Windows XP and the file is again present on system32/Drivers/.

Not lot can be done you need to reset Windows 10.