Microsoft Windows EXE at.exe

Troubleshoot At.exe Issues (Free Download)

Last Updated: 11/27/2023
[Time to Read Article: 5 minutes]

EXE files such as at.exe are categorized as Win32 EXE (Executable application) files. As a Schedule service command line interface file, it was created for use in Microsoft® Windows® Operating System by Microsoft.

at.exe was first released for Windows Vista Operating System on 11/08/2006 with Windows Vista. The most recent release for Windows 10 launched on 07/29/2015 [version 10.0.15063.0 (WinBuild.160101.0800) release]. at.exe is included in Windows 10, Windows 8.1, and Windows 8.

This article discusses complete file details, EXE file troubleshooting instructions for problems with at.exe, and a comprehensive set of free downloads for every file version that has been catalogued by our team.

File Analysis Provided by Jason Geater (Author)

File Overview

General Information ^✻
File Name:	at.exe
File Extension:	EXE file extension
Description:	Schedule service command line interface
Object File Type:	Executable application
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:	0x40c0
Code Size:	14336

View Other at.exe Information

File Info	Description
File Size:	24 kB
File Modification Date/Time:	2017:03:18 18:19:00+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:	2024:12:04 08:53:35+00:00
PE Type:	PE32
Linker Version:	14.10
Code Size:	14336
Initialized Data Size:	14848
Uninitialized Data Size:	0
Entry Point:	0x40c0
OS Version:	10.0
Image Version:	10.0
Subsystem Version:	10.0
Subsystem:	Windows command line
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:	Executable application
File Subtype:	0
Language Code:	English (U.S.)
Character Set:	Unicode
Company Name:	Microsoft Corporation
File Description:	Schedule service command line interface
File Version:	10.0.15063.0 (WinBuild.160101.0800)
Internal Name:	AT.EXE
Legal Copyright:	© Microsoft Corporation. All rights reserved.
Original Filename:	AT.EXE
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 at.exe Error Messages?

at.exe Runtime Errors

Runtime errors are Windows errors that occur during "runtime". Runtime is pretty self-explanatory; it means that these EXE errors are triggered when at.exe is attempted to be loaded either when Windows is starting up, or in some cases already running. Runtime errors are the most common form of EXE error you will encounter using Windows.

In most cases, at.exe runtime errors occurring while the program is running will result in the program terminating abnormally. Most of these at.exe error messages mean that Windows was either unable to locate this file on startup, or the file is corrupt, resulting in a prematurely-aborted startup process. Generally, Windows will be unable to start without resolving these errors.

Some of the most common at.exe errors include:

at.exe - Bad Image.
at.exe Application Error.
at.exe could not be found.
at.exe could not be installed.
at.exe could not be launched. Class not registered.
at.exe could not be started.
at.exe failed to initialize properly.
at.exe has encountered a problem and needs to close. We are sorry for the inconvenience.
at.exe is not a valid Win32 application.
at.exe is not running.
Cannot find at.exe.
Error starting program: at.exe.
Faulting Application Path: at.exe.
The file at.exe is missing or corrupt.
Windows failed to start - at.exe.

System Error

The program can’t start because at.exe is missing from your computer. Try reinstalling the program to fix this problem.

Thus, it's critical to make sure your anti-virus is kept up-to-date and scanning regularly.

Finding the source of the at.exe error is key to properly resolving these errors. Although most of these EXE errors affecting at.exe will happen during startup, occasionally you will encounter a runtime error while using Microsoft® Windows® Operating System. This can occur due to poor programming on behalf of Microsoft Corporation, conflicts with other software or 3rd-party plug-ins, or caused by damaged and outdated hardware. Also, these types of at.exe errors can occur if it has been accidentally moved, deleted, or corrupted by a malware infection. Thus, it's critical to make sure your anti-virus is kept up-to-date and scanning regularly.

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How to Fix at.exe 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 at.exe 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 at.exe error, please proceed to the Step 2 below.

Step 2: Run SFC (System File Checker) to restore the corrupt or missing at.exe 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 at.exe 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 at.exe 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 at.exe 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 at.exe 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 at.exe 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 at.exe file version. We maintain a comprehensive database of 100% malware-free at.exe 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 at.exe 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 XP: C:\WINDOWS\system32\dllcache\
Windows XP: C:\Windows\System32\
Windows Vista: C:\Windows\SysWOW64\
Windows Vista: C:\Windows\System32\
Windows 7: C:\Windows\System32\
Show 4 more directories +

Windows 7: C:\Windows\SysWOW64\
Windows 8: C:\Windows\System32\
Windows 8.1: C:\Windows\System32\
Windows 10: C:\Windows\System32\

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 at.exe 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 at.exe Files (Malware-Tested 100% Clean)

CAUTION : We strongly advise against downloading and copying at.exe to your appropriate Windows system directory. Microsoft typically does not release Windows EXE 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 at.exe and all other EXE files for Windows. An incorrectly installed EXE 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

at.exe

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:	25088
File Date:	03/18/2017
MD5 Checksum:	97b40b7fe12e1c438c13d64a01f3655a
SHA1 Checksum:	b05b730fc167cb64e509f203c6fc7b6150abe610
SHA256 Checksum:	9c3ea6adf8c40031f66f87a43d2251ab17b9bb4c57ceac8ca3f4244f5bec8475
CRC32:
File Directory Location:	C:\Windows\System32\

File Version, System, and Machine Information
File Type:	Win32 EXE
Image Version:	10.0
Initialized Data Size:	14848
Linker Version:	14.10
Machine Type:	Intel 386 or later, and compatibles
PE Type:	PE32
Subsystem:	Windows command line
Subsystem Version:	10.0
File Modification Date/Time:	03/18/2017

Windows XP

File Name

Software Version

File Version

Architecture

at.exe

5.1.2600.5512

5.1.2600.5512 (xpsp.080413-2113)

32-bit (x32)

Expand for Detailed File Information +

OS Version:	Windows XP
Software:	Microsoft® Windows® Operating System
Software Version:	5.1.2600.5512
File Version:	5.1.2600.5512 (xpsp.080413-2113)
File Size:	25088
File Date:	04/14/2008
MD5 Checksum:	ff90eec0fab78482be97c5637fef4090
SHA1 Checksum:	2144f878317115311a65fd97b6f3cf38ed6ae8db
SHA256 Checksum:	0e5234b0dfc28d140519bbc3218c4bb8a1c6168d19e62ad9d34ac42f2aefe247
CRC32:
File Directory Location:	C:\WINDOWS\system32\dllcache\ C:\Windows\System32\

File Version, System, and Machine Information
File Type:	Win32 EXE
Image Version:	5.1
Initialized Data Size:	12800
Linker Version:	7.10
Machine Type:	Intel 386 or later, and compatibles
PE Type:	PE32
Subsystem:	Windows command line
Subsystem Version:	4.0
File Modification Date/Time:	04/14/2008

Windows Vista

File Name

Software Version

File Version

Architecture

at.exe

32-bit (x32)

Expand for Detailed File Information +

OS Version:	Windows Vista
File Size:	24576
MD5 Checksum:	76928a90bd710a9a0c857cc88262001e
SHA1 Checksum:	f2a22040fffb319e4d3d20f80d22b5f71e21ec2b
SHA256 Checksum:	47d27e69c18c967b715fe0e544bdac5f60891833cf0ee80c4bba0c6764d158aa
CRC32:
File Directory Location:	C:\Windows\SysWOW64\

File Version, System, and Machine Information
There is no information available.

at.exe

6.0.6001.18000

6.0.6001.18000 (longhorn_rtm.080118-1840)

32-bit (x32)

Expand for Detailed File Information +

OS Version:	Windows Vista
Software:	Microsoft® Windows® Operating System
Software Version:	6.0.6001.18000
File Version:	6.0.6001.18000 (longhorn_rtm.080118-1840)
File Size:	28160
File Date:	01/21/2008
MD5 Checksum:	6279e89a362cbd05051df8e22c282f7b
SHA1 Checksum:	e53d691144115e1ce460366b7d8175badae61b0f
SHA256 Checksum:	ff8b900632099e2421a603744174fcc441a3ac46d3b00b85c682ddcc5b312521
CRC32:
File Directory Location:	C:\Windows\System32\

File Version, System, and Machine Information
File Type:	Win64 EXE
Image Version:	6.0
Initialized Data Size:	13824
Linker Version:	8.0
Machine Type:	AMD AMD64
PE Type:	PE32+
Subsystem:	Windows command line
Subsystem Version:	6.0
File Modification Date/Time:	01/21/2008

Windows 8.1

File Name

Software Version

File Version

Architecture

at.exe

6.3.9600.17415

6.3.9600.17415 (winblue_r4.141028-1500)

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 8.1
Software:	Microsoft® Windows® Operating System
Software Version:	6.3.9600.17415
File Version:	6.3.9600.17415 (winblue_r4.141028-1500)
File Size:	24064
File Date:	11/21/2014
MD5 Checksum:	42701691d2345a67a37e5899dd148285
SHA1 Checksum:	7789cec548653722d35f2badc65121515cc6a3a0
SHA256 Checksum:	30f9d677e81dd561ebe084ad3d0c71f20711dfb99584af68e2b4ee2c495cbf9b
CRC32:
File Directory Location:	C:\Windows\System32\

File Version, System, and Machine Information
File Type:	Win32 EXE
Image Version:	6.3
Initialized Data Size:	13824
Linker Version:	11.0
Machine Type:	Intel 386 or later, and compatibles
PE Type:	PE32
Subsystem:	Windows command line
Subsystem Version:	6.3
File Modification Date/Time:	11/21/2014

Windows 8

File Name

Software Version

File Version

Architecture

at.exe

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:	24576
File Date:	07/26/2012
MD5 Checksum:	2136973f27a70710a727bb4b82545eb8
SHA1 Checksum:	18dfa966d277226860fed26130bf6662f277ea93
SHA256 Checksum:	85eb8aa6698393094ae925c63a222a43f037fdffb69f5919f6e93b46b69a74c2
CRC32:
File Directory Location:	C:\Windows\System32\

File Version, System, and Machine Information
File Type:	Win32 EXE
Image Version:	6.2
Initialized Data Size:	14848
Linker Version:	10.10
Machine Type:	Intel 386 or later, and compatibles
PE Type:	PE32
Subsystem:	Windows command line
Subsystem Version:	6.2
File Modification Date/Time:	07/26/2012

Windows 7

File Name

Software Version

File Version

Architecture

at.exe

6.1.7600.16385

6.1.7600.16385 (win7_rtm.090713-1255)

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 7
Software:	Microsoft® Windows® Operating System
Software Version:	6.1.7600.16385
File Version:	6.1.7600.16385 (win7_rtm.090713-1255)
File Size:	28672
File Date:	07/14/2009
MD5 Checksum:	ed4cd10a13080e51f550f560f7fe50f1
SHA1 Checksum:	cbdf534c3b523d049192f6c340f7f20499d095a0
SHA256 Checksum:	14241a21ab4b17ece34e6d7ea32c6194c42ed9d234e1c08241e20f054d47cb2e
CRC32:
File Directory Location:	C:\Windows\System32\

File Version, System, and Machine Information
File Type:	Win64 EXE
Image Version:	6.1
Initialized Data Size:	13824
Linker Version:	9.0
Machine Type:	AMD AMD64
PE Type:	PE32+
Subsystem:	Windows command line
Subsystem Version:	6.1
File Modification Date/Time:	07/14/2009

at.exe

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 7
File Size:	24064
MD5 Checksum:	7bd932ffa2e9b359cb0544615973d149
SHA1 Checksum:	0959070711d0e87ceaa82213aff06a7b3abb1c5d
SHA256 Checksum:	1656501064960073efe80c25bd37b5518c860087679babb6bd34ba05dbed595e
CRC32:
File Directory Location:	C:\Windows\SysWOW64\

File Version, System, and Machine Information
There is no information available.

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Files Related to at.exe

EXE Files Related to at.exe

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
rekeywiz.exe	EFS REKEY wizard	Microsoft® Windows® Operating System (6.0.6002.18005)	51200	C:\Windows\inf\.NET Data Provider for SqlServer...
PrintBrmEngine.exe	PrintBrmEngine EXE	Microsoft® Windows® Operating System (6.2.9200.16384)	194048	C:\Windows\inf\
regsvr32.exe	Microsoft(C) Register Server	Microsoft® Windows® Operating System (6.2.9200.16384)	15872	C:\Windows\System32\Sysprep\Panther\
unlodctr.exe	Unload PerfMon Counters	Microsoft® Windows® Operating System (6.0.6001.18000)	39936	C:\WINDOWS\Tasks\
ocsetup.exe	Windows Optional Component Setup	Microsoft® Windows® Operating System (6.0.6002.18005)	38400	C:\$WINDOWS.~BT\Sources\Boot\PXE\ro-RO\

Other Files Related to at.exe

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
WWAN_profile_v1.xsd	XML Schema Definition	Windows 7	6201	C:\Windows\L2Schemas\
WWAN_profile_v1.xsd	XML Schema Definition	Windows 8.1	6201	C:\Windows\L2Schemas\
WWAN_profile_v1.xsd	XML Schema Definition	Windows 10	6201	C:\Windows\L2Schemas\
WWAN_profile_v1.xsd	XML Schema Definition	Microsoft Office Access 2010 14	6201	C:\Windows\Temp\527D94AF-D053-4381-B105-0D815D5...
WLAN_profile_v1.xsd	XML Schema Definition	Windows 7	15591	C:\Windows\L2Schemas\

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