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How do I fix 'ACPI.sys is missing or corrupted'?


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#1 SuperTA

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Posted 13 September 2016 - 08:38 PM

Hi,

 

I recently had performed a Windows Update on my HP laptop. I shut it off before it was done (Pretty stupid of me), and now it will not boot. It keeps coming up with a message saying ACPI.sys is corrupted and I'll need to use recovery tools.

 

Can someone please help me fix this?

 

Thanks.



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#2 usasma

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Posted 14 September 2016 - 06:34 AM

Here's some repair/recovery/restore options (in this order):

.

 

1 - Startup Repair.  Run it 3 times, rebooting in between tries.

2 - System Restore to a point before this started happening.

3 - DISM/SFC repair (DISM doesn't work with W7, although SFC does)
    

 

DISM /Online should only be used when running from within Windows. Run this command instead:
Dism /Image:C:\ /Cleanup-Image /RestoreHealth

Did you also try doing SFC scan while booting off of Recovery Environment or Install Disk? In those cases, the commands are slightly different:
sfc.exe /scannow /offbootdir=c:\ /offwindir=c:\windows

 


4 - RESET using the "Keep My Files" option (W8 calls this a REFRESH; W7 and earlier doesn't have this function)

5 - Repair install of the OS (Thanks to FreeBooter!):
   

 

"How To Perform a Repair Installation For Windows 8, 8.1 and 10"
    https://www.winhelp.us/non-destructive-reinstall-of-windows-8-and-8-1.html

    "How to Do a Repair Install to Fix Windows 7"
    http://www.sevenforums.com/tutorials/3413-repair-install.html

    "How To Perform a Repair Installation For Vista"
    http://www.vistax64.com/tutorials/88236-repair-install-vista.html

    "Non-destructive reinstall of Windows XP"
    https://www.winhelp.us/non-destructive-reinstall-of-windows-xp.html


6 - RESET using the "Remove Everything" option (W8 calls this a RESET; W7 and earlier doesn't have this function)

If using W7 or earlier, this can be accomplished by resetting the system by use of the recovery partition/recovery disks/recovery drive.
If you don't have them, you can usually order them from the OEM manufacturer of your system ( US points of contact here:  http://www.carrona.org/recdisc.html )

7 - Wipe and reinstall from the Recovery Partition (if so equipped)

8 - Wipe and reinstall from Recovery Media - to include deleting all partitions.
If you don't have them, you can usually order them from the OEM manufacturer of your system ( US points of contact here:  http://www.carrona.org/recdisc.html )

Edited by usasma, 14 September 2016 - 06:54 AM.

My browser caused a flood of traffic, sio my IP address was banned. Hope to fix it soon. Will get back to posting as soon as Im able.

- John  (my website: http://www.carrona.org/ )**If you need a more detailed explanation, please ask for it. I have the Knack. **  If I haven't replied in 48 hours, please send me a message. My eye problems have recently increased and I'm having difficult reading posts. (23 Nov 2017)FYI - I am completely blind in the right eye and ~30% blind in the left eye.<p>If the eye problems get worse suddenly, I may not be able to respond.If that's the case and help is needed, please PM a staff member for assistance.

#3 SuperTA

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Posted 14 September 2016 - 08:12 PM

None of those have worked, excluding the ones that involve formatting the C: drive. I really don't want to format and reinstall. Is there another way?

#4 usasma

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Posted 16 September 2016 - 04:50 AM

Sorry, but I don't have a clue about how to fix it.

 

I'd wonder about repacing ACPI.sys from a known good computer - but you have to make sure to provide copies of all of the ACPI.sys files on the system, and be sure that they are the versions that Windows expects to see in that location.  I don't know how to do this with a malfunctioning system - it's difficult enough with a system that you can work with.

 

On my W10 system I've found them in C:\Windows\System32\drivers (this one is v10.0.14393.0) and in C:\Windows\WinSxS\<different copies in different sub-directories>

FYI - my 64 bit W10 Pro system is at build 14393.105 as of this writing. (don't know if this matters, but my system is setup for US English)

I've attached a zipped copy of my ACPI.sys file from the C:\Windows\System32\drivers folder

As with any download from the internet, please scan it with an antivirus BEFORE opening it.

 

If you have a copy of ACPI.sys on the system already - rename it to ACPI.OLD before trying to copy my copy over.

Attached Files

  • Attached File  acpi.zip   367.78KB   147 downloads

Edited by usasma, 16 September 2016 - 04:51 AM.

My browser caused a flood of traffic, sio my IP address was banned. Hope to fix it soon. Will get back to posting as soon as Im able.

- John  (my website: http://www.carrona.org/ )**If you need a more detailed explanation, please ask for it. I have the Knack. **  If I haven't replied in 48 hours, please send me a message. My eye problems have recently increased and I'm having difficult reading posts. (23 Nov 2017)FYI - I am completely blind in the right eye and ~30% blind in the left eye.<p>If the eye problems get worse suddenly, I may not be able to respond.If that's the case and help is needed, please PM a staff member for assistance.

#5 SuperTA

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Posted 16 September 2016 - 05:52 AM

Thank you. I will try this tonight.

#6 SuperTA

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Posted 16 September 2016 - 06:30 AM

I don't know if this matters, but I do have a log from when I tried to run the DISM command. Do you think that log will help with anything?

#7 usasma

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Posted 17 September 2016 - 05:07 AM

It might help others - but I can't read them.


My browser caused a flood of traffic, sio my IP address was banned. Hope to fix it soon. Will get back to posting as soon as Im able.

- John  (my website: http://www.carrona.org/ )**If you need a more detailed explanation, please ask for it. I have the Knack. **  If I haven't replied in 48 hours, please send me a message. My eye problems have recently increased and I'm having difficult reading posts. (23 Nov 2017)FYI - I am completely blind in the right eye and ~30% blind in the left eye.<p>If the eye problems get worse suddenly, I may not be able to respond.If that's the case and help is needed, please PM a staff member for assistance.

#8 SuperTA

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Posted 17 September 2016 - 11:11 AM

I am really happy now :)

It turns out the original ACPI.sys was 0 bytes in size and was corrupted. So, I replaced it with your copy and it fixed it right up :)

Thank you for all your help. I really appreciate it.

Thank you.

#9 usasma

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Posted 19 September 2016 - 05:43 AM

I'm glad that this worked for you.

Thanks for letting us know!


My browser caused a flood of traffic, sio my IP address was banned. Hope to fix it soon. Will get back to posting as soon as Im able.

- John  (my website: http://www.carrona.org/ )**If you need a more detailed explanation, please ask for it. I have the Knack. **  If I haven't replied in 48 hours, please send me a message. My eye problems have recently increased and I'm having difficult reading posts. (23 Nov 2017)FYI - I am completely blind in the right eye and ~30% blind in the left eye.<p>If the eye problems get worse suddenly, I may not be able to respond.If that's the case and help is needed, please PM a staff member for assistance.

#10 Meanmustang

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Posted 04 April 2018 - 09:13 AM

usasma do you have an updated version of that acpi file? Also I do not have permission to change the system folder. But I am the only owner of this machine. How do I get in there?



#11 usasma

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Posted 05 April 2018 - 04:13 PM

Sorry, do not have an Asus system to check on.

You can take ownership - but I'm uncertain if that'll help or hurt.

I'd suggest posting over in the Windows 7 forums for more expert assistance.  I haven't worked on a W7 system in over a year.


My browser caused a flood of traffic, sio my IP address was banned. Hope to fix it soon. Will get back to posting as soon as Im able.

- John  (my website: http://www.carrona.org/ )**If you need a more detailed explanation, please ask for it. I have the Knack. **  If I haven't replied in 48 hours, please send me a message. My eye problems have recently increased and I'm having difficult reading posts. (23 Nov 2017)FYI - I am completely blind in the right eye and ~30% blind in the left eye.<p>If the eye problems get worse suddenly, I may not be able to respond.If that's the case and help is needed, please PM a staff member for assistance.




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