Fix OCT.CHM Errors

Sometimes Windows system displays error messages regarding corrupted or missing OCT.CHM files. Situations like that can occur, for example, during a software installation process. Each software program requires certain resources, libraries, and source data to work properly. Corrupted or nonexistent OCT.CHM file can therefore effect in failed execution of the started process.

OCT.CHM file Compiled HTML Help. The file was developed by Microsoft for use with Office software. Here you will find detailed information about the file and instructions how to proceed in the event of OCT.CHM related errors on your device. You can also download OCT.CHM file compatible with Windows 10, Windows 7, Windows Vista, Windows 8 devices which will (most probably) allow you to solve the problem.

For Windows Compatible with: Windows 10, Windows 7, Windows Vista, Windows 8

File info

General information
Filename OCT.CHM
File extension CHM
Type Compiled HTML Help
Description Compiled HTML Help
Software
Program Office 2010
Software Office
Author Microsoft
Software version 2010
Details
MIME type application/x-chm
Language cod English (U.S.)
OCT.CHM

There are various types of errors related to OCT.CHM file. OCT.CHM file may be located in wrong file directory on your device, may not be present in the system, or may be infected with malicious software and therefore not work correctly. Below is a list of most common error messages related to OCT.CHM file. If you encounter one listed below (or similar), please consider the following suggestions.

  • OCT.CHM is corrupted
  • OCT.CHM cannot be located
  • Runtime Error - OCT.CHM
  • OCT.CHM file error
  • OCT.CHM file cannot be loaded. Module was not found
  • cannot register OCT.CHM file:
  • OCT.CHM file could not be loaded
  • OCT.CHM file doesn't exist

OCT.CHM

Error

Application could not be started because OCT.CHM file is missing. Reinstall the application to solve the problem.

OK

Problems related to OCT.CHM can be addressed in various ways. Some methods are meant only for advanced users. If you don't have confidence in your skills, we suggest consulting a specialist. Fixing OCT.CHM file errors should be approached with utmost caution for any mistakes can result in unstable or unproperly working system. If you have the necassary skills, please proceed.

OCT.CHM file errors can be caused by various factors, so its is beneficial to try to fix them using various methods.

Step 1: Scan your computer for any malicious software

Virus Scan

Windows files are commonly attacked by malicious software that prevents them from working properly. First step in addressing problems with OCT.CHM file or any other Windows system files should be scanning the system for malicious software using an antivirus tool.

If by any chance you don't have any antivirus software installed on your system yet, you should do it immediately. Unprotected system is not only a source of file errors, but, more importantly, makes your system vulnerable to many dangers. If you don't know which antivirus tool to choose, consult this Wikipedia article – comparison of antivirus software.

Step 2: Update your system and drivers.

Windows Update

Installing relevant Microsoft Windows patches and updates may solve your problems related to OCT.CHM file. Use dedicated Windows tool to perform the update.

  1. Go to the Windows "Start" menu
  2. Type "Windows Update" in the search field
  3. Choose the appropriate software program (name may vary depending on your system version)
  4. Check if your system is up to date. If any unapplied updates are listed, install them immediately.
  5. After the update has been done,restart your computer in order to complete the process.

Beside updating the system, it is recommended that you install latest device drivers, as drivers can influence proper working of OCT.CHM or other system files. In order to do so, go to your computer or device producer's website where you will find information regarding latest driver updates.

Step 3: Use System File Checker (SFC) tool

System File Checker

System File Checker is a Microsoft Windows tool. As the name suggests, the tool is used for identyfing and addressing system file related errors, including those related to OCT.CHM file. After an error related to%fileextension% file has been discovered, the program attempts to automatically replace the OCT.CHM file with properly working version. To use the tool:

  1. Go to the Windows "Start" menu
  2. Type "cmd" in the search field
  3. Locate "Command Prompt" result – don't run it yet:
  4. Click the right mouse button and select "Run as Administrator" option
  5. Type "sfc /scannow" in console prompt to start the program and follow the instructions

Step 4: Restoring Windows system

Windows Recovery

Another approach is to restore system to previous state, before the OCT.CHM file error occured. In order to restore your system, follow the instructions below

  1. Go to the Windows "Start" menu
  2. Type "System Restore" in the search field
  3. Start the system restore tool – it's name may differ depending on version of the system
  4. The application will guide you through the process – read the messages carefully
  5. After the process has finished, restart your computer.

If all the above-mentioned methods failed and the OCT.CHM file problem has not been resolved, proceed to the next step. Remember that the following steps are intended only for advanced users.

Download and replace OCT.CHM file

The last solution is to manually download and replace OCT.CHM file in appropriate folder on the disk. Select file version compatible with your operating system and click the "Download" button. Next, go to your web browser's "Downloaded" folder and copy the downloaded OCT.CHM file.

Go to the folder where the file should be located and paste the downloaded file. Below is the list of OCT.CHM file example directory paths.

  • Windows 10: C:\Program Files\Common Files\microsoft shared\OFFICE15\Office Setup Controller\Office.en-us\
  • Windows 7: ---
  • Windows Vista: ---
  • Windows 8: ---

If the steps did not solve your OCT.CHM file problem, you should consult a professional. A probability exists that the error(s) might be device-related and therefore should be resolved at the hardware level. A fresh operating system installation might be necessary – a faulty system installation process can result in data loss.

File versions list

Filename OCT.CHM
System Windows 10
File size 92010 bytes
Date 2017-05-10
File details
MD5 8e31f737188ad86f7104b3cfbbdbe11b
SHA1 ab781f04a88a4a7e765f02898d56ca9941849e15
SHA256 542103cad593686bc46608c0b6295179ff99edaef0e55d163fc7b63f31ab0d65
CRC32 ade62d42
Example file location C:\Program Files\Common Files\microsoft shared\OFFICE15\Office Setup Controller\Office.en-us\
Filename OCT.CHM
System Windows 7
File size 71236 bytes
Date 2017-05-10
File details
MD5 7912fce05e16dd40010e04c294099b21
SHA1 602911cff53f59ff5d7831d0389b791016796caa
SHA256 cf636ad7fd8eeffb2ac1691b33e3aa16d0a15b1d7c10bfa924113a13771eb607
CRC32 5e62c00a
Example file location ---
Filename OCT.CHM
System Windows Vista
File size 57678 bytes
Date 2017-05-10
File details
MD5 c60e31eacd9fd5d6e0c3e44591efa814
SHA1 295dcfceee8b221c9a2d523e9d41ccb99b764337
SHA256 2cbd26373a4f20ad816b9aecef831a494781c98bdfa6066e1b476254013e132c
CRC32 8a19d734
Example file location ---
Filename OCT.CHM
System Windows 8
File size 92010 bytes
Date 2017-05-10
File details
MD5 8e31f737188ad86f7104b3cfbbdbe11b
SHA1 ab781f04a88a4a7e765f02898d56ca9941849e15
SHA256 542103cad593686bc46608c0b6295179ff99edaef0e55d163fc7b63f31ab0d65
CRC32 ade62d42
Example file location ---