Download and Repair SCANOST.EXE Issues

Last Updated: 05/04/2020
[Time to Read Article: 5 minutes]

SCANOST.EXE uses the EXE file extension, which is more specifically known as a Microsoft Office Outlook OST Integrity Check file. It is classified as a Win32 EXE (Dynamic link library) file, created for Microsoft Office Outlook by Microsoft.

SCANOST.EXE was first developed on 05/31/2001 for the Windows XP Operating System in Office XP. The newest file release date for Microsoft Office Basic 2007 11 was 07/28/2009 [version 12.0.4518.1014]. SCANOST.EXE is included with Microsoft Office Basic 2007 11, Microsoft Office Outlook 2007 12, and Office 2007.

Please continue reading to find your correct SCANOST.EXE file version download (free), detailed file information, and EXE file troubleshooting instructions.

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File Overview


General Information
File Name: SCANOST.EXE
File Extension: EXE file extension
Description: Microsoft Office Outlook OST Integrity Check
Object File Type: Dynamic link library
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 Office Outlook
Legal Copyright: © 2006 Microsoft Corporation. All rights reserved.
File Details
Character Set: Windows, Latin1
Language Code: English (U.S.)
File Flags: (none)
File Flags Mask: 0x003f
Entry Point: 0x86ae
Code Size: 37888


What are SCANOST.EXE Error Messages?


SCANOST.EXE Runtime Errors

Runtime errors are Microsoft Office Basic 2007 errors that occur during "runtime". Runtime is pretty self-explanatory; it means that these EXE errors are triggered when SCANOST.EXE is attempted to be loaded either when Microsoft Office Basic 2007 is starting up, or in some cases already running. Runtime errors are the most common form of EXE error you will encounter using Microsoft Office Basic 2007.

In most cases, SCANOST.EXE runtime errors occurring while the program is running will result in the program terminating abnormally. Most of these SCANOST.EXE error messages mean that Microsoft Office Basic 2007 was either unable to locate this file on startup, or the file is corrupt, resulting in a prematurely-aborted startup process. Generally, Microsoft Office Basic 2007 will be unable to start without resolving these errors.

Some of the most common SCANOST.EXE errors include:

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


The program can’t start because SCANOST.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 SCANOST.EXE error is key to properly resolving these errors. Although most of these EXE errors affecting SCANOST.EXE will happen during startup, occasionally you will encounter a runtime error while using Microsoft Office Outlook. 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 SCANOST.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.



How to Fix SCANOST.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 SCANOST.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):

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

If the Step 1 fails to resolve the SCANOST.EXE error, please proceed to the Step 2 below.

Step 2: If recently installed Microsoft Office Basic 2007 (or related software), uninstall then try reinstalling Microsoft Office Basic 2007 software.

You can uninstall Microsoft Office Basic 2007 software by following these instructions (Windows XP, Vista, 7, 8, and 10):

  1. Hit the Windows Start button
  2. In the search box, type "Uninstall" and press "ENTER".
  3. In the search results, find and click "Add or Remove Programs"
  4. Find the entry for Microsoft Office Basic 2007 11 and click "Uninstall"
  5. Follow the prompts for uninstallation.

After the software has been fully uninstalled, restart your PC and reinstall Microsoft Office Basic 2007 software.

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

Microsoft Office Basic 2007 11

Microsoft Corporation

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 SCANOST.EXE error messages that are encountered can be contributed to an outdated Windows Operating System. To run Windows Update, please follow these easy steps:

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

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



If Those Steps Fail: Download and Replace Your SCANOST.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 SCANOST.EXE file version. We maintain a comprehensive database of 100% malware-free SCANOST.EXE files for every applicable version of Microsoft Office Basic 2007. Please follow the steps below to download and properly replace you file:

  1. Locate your Windows operating system version in the list of below "Download SCANOST.EXE Files".
  2. Click the appropriate "Download Now" button and download your Windows file version.
  3. Copy this file to the appropriate Microsoft Office Basic 2007 folder location:
    Windows 10: C:\Program Files (x86)\Microsoft Office\Office12\
    Windows 10: C:\Program Files (x86)\Microsoft Office\Office12\
    Windows Vista: C:\Program Files (x86)\Microsoft Office\Office12\
    Windows XP: C:\Program Files\Common Files\System\MSMAPI\1033\
    Windows XP: C:\Program Files\Common Files\System\Mapi\1033\
  4. 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 SCANOST.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.



Download SCANOST.EXE Files (Malware-Tested 100% Clean)


CAUTION : We strongly advise against downloading and copying SCANOST.EXE to your appropriate Windows system directory. Microsoft typically does not release Microsoft Office Basic 2007 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 SCANOST.EXE and all other EXE files for Microsoft Office Basic 2007. 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
Windows Vista
Windows XP


Files Related to SCANOST.EXE


EXE Files Related to SCANOST.EXE

File Name Description Software Program (Version) File Size (bytes) File Location
MpSigStub.exe Microsoft Malware Protection Signature Update Stub Microsoft Malware Protection (1.1.16500.1) 748816 C:\Windows\System32\
FileCoAuth.exe Microsoft OneDriveFile Co-Authoring Executable Microsoft OneDrive (19.222.1110.0006) 506216 C:\Users\Tester\AppData\Local\Microsoft\OneDriv...
OIS.EXE Microsoft Office Picture Manager Microsoft Office Picture Manager (12.0.4518.1014) 274744 C:\Program Files (x86)\Microsoft Office\Office12\
OFFDIAG.EXE Microsoft Office Diagnostics Office Diagnostics (12.0.4518.1014) 2872112 C:\Program Files (x86)\Common Files\microsoft s...
Setup.exe Microsoft Setup Bootstrapper Microsoft Setup Bootstrapper (12.0.4518.1014) 463152 C:\MSOCache\All Users\{91120000-0031-0000-0000-...

Other Files Related to SCANOST.EXE

File Name Description Software Program (Version) File Size (bytes) File Location
OneX_v1.xsd XML Schema Definition Windows 8.1 5957 C:\Windows\L2Schemas\
OneX_v1.xsd XML Schema Definition Windows 10 5957 C:\Windows\L2Schemas\
WLANAP_profile_v1.xsd XML Schema Definition Windows 7 7504 C:\Windows\L2Schemas\
WLAN_profile_v1.xsd XML Schema Definition Windows 8.1 16142 C:\Windows\L2Schemas\
WLAN_profile_v1.xsd XML Schema Definition Windows 10 18585 C:\Windows\L2Schemas\


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