How to Repair Acpitime.sys (Free File Download)

Last Updated: 12/03/2024
[Time Required for Reading: 3.5 minutes]

SYS files such as acpitime.sys are categorized as Win32 EXE (Driver) files. As a ACPI Wake Alarm file, it was created for use in Microsoft® Windows® Operating System by Microsoft.

The first release of acpitime.sys for the Windows 8 platform was on 08/01/2012 for Windows 8. The latest file version for Windows 10 is v10.0.15063.0 (WinBuild.160101.0800) released on 07/29/2015. acpitime.sys is included in Windows 10, Windows 8.1, and Windows 8 versions.

Please see below for more detailed information, SYS file troubleshooting instructions, and free downloads of different versions of acpitime.sys.

File Analysis Provided by Jason Geater (Author)

File Overview

General Information ^✻
File Name:	acpitime.sys
File Extension:	SYS file extension
Description:	ACPI Wake Alarm
Object File Type:	Driver
File Operating System:	Windows NT 32-bit
MIME Type:	application/octet-stream
User Popularity Rating:

Developer and Software Information
Software Developer:	Microsoft Corporation
Software Program:	Microsoft® Windows® Operating System
Legal Copyright:	© Microsoft Corporation. All rights reserved.

File Details
Character Set:	Unicode
Language Code:	English (U.S.)
File Flags:	(none)
File Flags Mask:	0x003f
Entry Point:	0x1040
Code Size:	5632

View Other acpitime.sys Information

File Info	Description
File Size:	9.5 kB
File Modification Date/Time:	2017:03:18 18:18:18+00:00
File Inode Change Date/Time:	2017:11:05 07:07:54+00:00
File Type:	Win32 EXE
MIME Type:	application/octet-stream
Warning:	Possibly corrupt Version resource
Machine Type:	Intel 386 or later, and compatibles
Time Stamp:	2003:05:12 00:53:18+00:00
PE Type:	PE32
Linker Version:	14.10
Code Size:	5632
Initialized Data Size:	3584
Uninitialized Data Size:	0
Entry Point:	0x1040
OS Version:	10.0
Image Version:	10.0
Subsystem Version:	10.0
Subsystem:	Native
File Version Number:	10.0.15063.0
Product Version Number:	10.0.15063.0
File Flags Mask:	0x003f
File Flags:	(none)
File OS:	Windows NT 32-bit
Object File Type:	Driver
File Subtype:	7
Language Code:	English (U.S.)
Character Set:	Unicode
Company Name:	Microsoft Corporation
File Description:	ACPI Wake Alarm
File Version:	10.0.15063.0 (WinBuild.160101.0800)
Internal Name:	acpitime.sys
Legal Copyright:	© Microsoft Corporation. All rights reserved.
Original Filename:	acpitime.sys
Product Name:	Microsoft® Windows® Operating System
Product Version:	10.0.15063.0

^✻ Portions of file data provided by Exiftool (Phil Harvey) distributed under the Perl Artistic License.

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What are acpitime.sys Error Messages?

acpitime.sys Blue Screen of Death (BSOD) Errors

There are a number of reasons why you could be encountering issues with acpitime.sys. Most of the issues concerning sys files involve Blue Screen of Death (BSOD) errors. These types of acpitime.sys errors can be cause by hardware problems, outdated firmware, corrupt drivers, or other software-related (eg. Windows update) issues. Some of these errors include:

acpitime.sys could not be found.
acpitime.sys failed to load.
The file acpitime.sys is missing or corrupt.
Windows failed to start - acpitime.sys.

A problem has been detected and Windows has been shut down to prevent damage to your computer. The problem seems to be caused by the following file: acpitime.sys.

:( Your PC ran into a problem that it couldn't handle, and now needs to restart. You can search for the error online: [BSOD] (acpitime.sys).

STOP 0x0000000A: IRQL NOT LESS EQUAL (acpitime.sys) STOP 0x0000001E: KMODE EXCEPTION NOT HANDLED (acpitime.sys) STOP 0x0000007E: SYSTEM THREAD EXCEPTION NOT HANDLED (acpitime.sys) STOP 0×0000007A: KERNEL DATA INPAGE (acpitime.sys) STOP 0x00000050: PAGE FAULT IN A NONPAGED AREA (acpitime.sys) STOP 0x0000003B: SYSTEM SERVICE EXCEPTION (acpitime.sys)

It's Critical to Resolve Blue Screen of Death Errors

In the majority of cases, you will encounter acpitime.sys BSOD errors after you've installed new hardware, software (Windows), or performed a failed Windows Update. In other cases, software corruption caused by a malware infection can lead to acpitime.sys Blue Screen of Death errors. Therefore, it's critical to make sure your anti-virus is kept up-to-date and scanning regularly.

GEEK TIP : As a rule of thumb, it's always a good idea to create a Windows "Snapshot" backup / System Restore Point before making any hardware or software changes to your computer. That way, it's very easy to restore your system in the unfortunate event you encounter a acpitime.sys Blue Screen of Death error after recent changes.

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How to Fix acpitime.sys Errors in 3 Steps (Time to complete: ~5-15 minutes)

If you're encountering one of the error messages above, follow these troubleshooting steps to resolve your acpitime.sys issue. These troubleshooting steps are listed in the recommended order of execution.

Step 1: Restore your PC back to the latest restore point, "snapshot", or backup image before error occurred.

To begin System Restore (Windows XP, Vista, 7, 8, and 10):

Hit the Windows Start button
When you see the search box, type "System Restore" and press "ENTER".
In the search results, find and click System Restore.
Please enter the administrator password (if applicable / prompted).
Follow the steps in the System Restore Wizard to choose a relevant restore point.
Restore your computer to that backup image.

If the Step 1 fails to resolve the acpitime.sys error, please proceed to the Step 2 below.

Step 2: Run SFC (System File Checker) to restore the corrupt or missing acpitime.sys file.

System File Checker is a utility included with every Windows version that allows you scan and restore corrupted system files. Use the SFC tool to fix missing or corrupt acpitime.sys files (Windows XP, Vista, 7, 8, and 10):

Hit the Windows Start button
In the search box, type "cmd" but DO NOT PRESS "ENTER".
Press and hold "CTRL-Shift" on your keyboard while pressing "ENTER".
You'll be prompted with a permission dialog box.
In the box, click "YES".
You should have a black screen with a blinking cursor.
In that black screen, type "sfc /scannow" and hit "ENTER".
SFC will begin scanning for acpitime.sys issues and any other system file problems.
Follow any on-screen commands to complete the process.

Please be aware that this scan might take a while, so please be patient while it is working.

If this Step 2 fails as well, please proceed to the Step 3 below.

sfc /scannow

Step 3: Perform a Windows Update.

When the first two steps haven't solved your issue, it might be a good idea to run Windows Update. Many acpitime.sys error messages that are encountered can be contributed to an outdated Windows Operating System. To run Windows Update, please follow these easy steps:

Hit the Windows Start button
In the search box, type "Update" and press "ENTER".
In the Windows Update dialog box, click "Check for Updates" (or similar button depending on your Windows version)
If updates are available for download, click "Install Updates".
After the update is completed, restart your PC.

If Windows Update failed to resolve the acpitime.sys error message, please proceed to next step. Please note that this final step is recommended for advanced PC users only.

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If Those Steps Fail: Download and Replace Your acpitime.sys File (Caution: Advanced)

If none of the previous three troubleshooting steps have resolved your issue, you can try a more aggressive approach (Note: Not recommended for amateur PC users) by downloading and replacing your appropriate acpitime.sys file version. We maintain a comprehensive database of 100% malware-free acpitime.sys files for every applicable version of Windows. Please follow the steps below to download and properly replace you file:

Locate your Windows operating system version in the list of below "Download acpitime.sys Files".
Click the appropriate "Download Now" button and download your Windows file version.
Copy the file into the appropriate directory for your Windows version:

Windows 8: C:\Windows\System32\drivers\
Windows 8: C:\Windows\System32\DriverStore\FileRepository\acpitime.inf_x86_5561c6a886375557\
Windows 8.1: C:\Windows\System32\drivers\
Windows 8.1: C:\Windows\System32\DriverStore\FileRepository\acpitime.inf_x86_4886aaec2e061ff9\
Windows 10: C:\Windows\System32\drivers\
Show 1 more directory +

Windows 10: C:\Windows\System32\DriverStore\FileRepository\acpitime.inf_x86_4607f78f6d901ebf\

Restart your computer.

If this final step has failed and you're still encountering the error, you're only remaining option is to do a clean installation of Windows 10.

GEEK TIP : We must emphasize that reinstalling Windows will be a very time-consuming and advanced task to resolve acpitime.sys problems. To avoid data loss, you must be sure that you have backed-up all of your important documents, pictures, software installers, and other personal data before beginning the process. If you are not currently backing up your data, you need to do so immediately.

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Download acpitime.sys Files (Malware-Tested 100% Clean)

CAUTION : We strongly advise against downloading and copying acpitime.sys to your appropriate Windows system directory. Microsoft typically does not release Windows SYS files for download because they are bundled together inside of a software installer. The installer's task is to ensure that all correct verifications have been made before installing and placing acpitime.sys and all other SYS files for Windows. An incorrectly installed SYS file may create system instability and could cause your program or operating system to stop functioning altogether. Proceed with caution.

Windows 10

File Name

Software Version

File Version

Architecture

acpitime.sys

10.0.15063.0

10.0.15063.0 (WinBuild.160101.0800)

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 10
Software:	Microsoft® Windows® Operating System
Software Version:	10.0.15063.0
File Version:	10.0.15063.0 (WinBuild.160101.0800)
File Size:	9728
File Date:	03/18/2017
MD5 Checksum:	280b2f44a62aad966e9ab8319073ad9f
SHA1 Checksum:	a1552a17d89ba00327dafc7727b71b74c12b5c48
SHA256 Checksum:	bbe5c7904d5ffb95912d3bf8afc46b3d4576d06a75e6ff9fb586d9a7a233dc62
CRC32:
File Directory Location:	C:\Windows\System32\drivers\ C:\Windows\System32\DriverStore\FileRepository ...

File Version, System, and Machine Information
File Type:	Win32 EXE
Image Version:	10.0
Initialized Data Size:	3584
Linker Version:	14.10
Machine Type:	Intel 386 or later, and compatibles
PE Type:	PE32
Subsystem:	Native
Subsystem Version:	10.0
File Modification Date/Time:	03/18/2017

Windows 8.1

File Name

Software Version

File Version

Architecture

acpitime.sys

6.3.9600.16384

6.3.9600.16384 (winblue_rtm.130821-1623)

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 8.1
Software:	Microsoft® Windows® Operating System
Software Version:	6.3.9600.16384
File Version:	6.3.9600.16384 (winblue_rtm.130821-1623)
File Size:	8704
File Date:	08/22/2013
MD5 Checksum:	519fa16cfe54f107861501d852322aef
SHA1 Checksum:	8efe95215a8915955a77179d0684b9bcd4c8c991
SHA256 Checksum:	ac81aeaabf7c97f90769a8ee789449db413815c2634999ae0c5825bf40656505
CRC32:
File Directory Location:	C:\Windows\System32\drivers\ C:\Windows\System32\DriverStore\FileRepository ...

File Version, System, and Machine Information
File Type:	Win32 EXE
Image Version:	6.3
Initialized Data Size:	4608
Linker Version:	11.0
Machine Type:	Intel 386 or later, and compatibles
PE Type:	PE32
Subsystem:	Native
Subsystem Version:	6.3
File Modification Date/Time:	08/22/2013

Windows 8

File Name

Software Version

File Version

Architecture

acpitime.sys

6.2.9200.16384

6.2.9200.16384 (win8_rtm.120725-1247)

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 8
Software:	Microsoft® Windows® Operating System
Software Version:	6.2.9200.16384
File Version:	6.2.9200.16384 (win8_rtm.120725-1247)
File Size:	8704
File Date:	07/26/2012
MD5 Checksum:	38e110c96b2acab4d9a701777c9bcd98
SHA1 Checksum:	42767014573a8a1e1e00aaeff6612af10104c829
SHA256 Checksum:	d62a26c5ee6b9900f4bcc1b941437a9b6115478563fc8b77860d783be83c32a9
CRC32:
File Directory Location:	C:\Windows\System32\drivers\ C:\Windows\System32\DriverStore\FileRepository ...

File Version, System, and Machine Information
File Type:	Win32 EXE
Image Version:	6.2
Initialized Data Size:	4608
Linker Version:	10.10
Machine Type:	Intel 386 or later, and compatibles
PE Type:	PE32
Subsystem:	Native
Subsystem Version:	6.2
File Modification Date/Time:	07/26/2012

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Files Related to acpitime.sys

SYS Files Related to acpitime.sys

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
hpmc.sys	HP DLT/Optical Medium changer driver	Microsoft® Windows® Operating System (6.0.6001.18000)	17920	C:\Windows\Boot\PCAT\fr-FR\
csc.sys	Windows Client Side Caching Driver	Microsoft® Windows® Operating System (10.0.15063.0)	427008	C:\Windows\Panther\NewOs\Panther\
arc.sys	Adaptec RAID Storport Driver	Adaptec RAID Controller (5.2.0.10384)	90680	C:\Windows\Fonts\
umbus.sys	User-Mode Bus Enumerator	Microsoft® Windows® Operating System (6.2.9200.16384)	39424	C:\Windows\Logs\DPX\
RTL85n86.sys	Realtek 8180/8185 Wireless Device	Realtek 8180/8185 Wireless Adapters (6.1125.0615.2010)	1812584	C:\Windows\System32\LogFiles\WMI\RtBackup\

Other Files Related to acpitime.sys

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
WWAN_profile_v1.xsd	XML Schema Definition	Windows 8.1	6201	C:\Windows\L2Schemas\
WLANAP_profile_v1.xsd	XML Schema Definition	Windows 7	7504	C:\Windows\L2Schemas\
WLANAP_profile_v1.xsd	XML Schema Definition	Windows 10	7548	C:\Windows\L2Schemas\
WLAN_profile_v1.xsd	XML Schema Definition	Windows 8	15591	C:\Windows\L2Schemas\
WLAN_profile_v1.xsd	XML Schema Definition	Windows XP	15263	C:\Windows\L2Schemas\

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