Skip to main content

How to fix illegal operations on a computer

How to fix illegal operations on a computer

Updated: 05/23/2017 by Computer Hope
When the operating system or computer processor receives an instruction from a program that it does not recognize and cannot process, it may issue a command known as an Illegal Operation. Below are reasons why an Illegal Operation happens on a computer.
Illegal Operation

TSR's or third-party programs

TSR's or third-party programs running in the background are one of the more commonly found reasons for Illegal Operations. If the Illegal Operation is happening when running a game or program close all other open programs and TSR's running in the background.
If after removing these programs you no longer receive the Illegal Operation messages, we recommend that you reboot the computer. Once it's up, disable or End Task each program or TSR one at a time to determine which program is causing the Illegal Operation.

Error in program coding

Verify that the program causing the Illegal Operations is compatible with your version of Windows and check with the developer to make sure no patches or updates are available. There is no such thing as a perfect software program, and it is not uncommon for multiple patches and updates to be released during a program's life cycle.

Data is not being read properly from source

When running a program or game from a CD you receive an Illegal Operation, verify that the CD is clean. Additional information on how to clean a CD or CD-ROM drive can be found on our cleaning page.
If you are running a game from a floppy diskette or other drive make sure the disk or drive does not have physical errors with it by running a ScanDisk.

Installing a program or game on a hard drive that has errors or is highly fragmented

Make sure that drive is not fragmented or corrupt by running ScanDisk and Defrag on the drive.
If errors exist on the hard drive, they cause the program or game to run improperly and can cause Illegal Operations.

Corrupt files

Corrupt, bad, or missing files can cause Illegal Operations. Try uninstalling and then reinstalling the program causing the Illegal Operation to verify that any corrupt, bad or missing files are replaced or repaired during the reinstallation.

Memory managers

If you are running a memory manager, it is recommended you temporarily disable or uninstall this program to verify it is not causing the Illegal Operations.

Bad, incorrect, or outdated video drivers

Bad, incorrect, or outdated video drivers can cause Illegal Operations when moving the mouse, highlighting, or when high demands are placed onto the video card. Try decreasing the resolution to make sure your current settings are not causing the problem.
If after adjusting the video settings you still encounter the same issue, verify the computer is utilizing the latest video card drivers by visiting our computer video driverssection.

Computer virus

Because computer viruses and other malware load into memory and can improperly modify files they can cause Illegal Operation error messages. Make sure an anti-virus protection utility is installed on the computer and that it is up-to-date.

Added hardware

If new hardware has been recently installed (e.g. computer memory) in the computer it or any drivers that had to be installed may be conflicting with other computer hardware. Temporarily remove any new hardware and the software associated with it to make sure it is not causing the problem.

Bad Memory, invalid bits or physically bad memory

Bad memory can cause Illegal Operations. If you have recently added memory to the computer, remove the memory to make sure it is not causing the problem. If no memory has been recently added and you have tried all the above recommendations, test your computer memory.

Corruption or problem within Windows

Because Windows controls the memory operations and all system operations if any part of Windows is corrupt it can cause Illegal Operations. If you have tried all the above suggestions, we suggest reinstalling Windows.

Comments

Post a Comment

Popular posts from this blog

Education of India Part 2

History [ edit ] Main article:  History of education in South Asia The remnants of the library of  Nalanda , built in the 5th century BCE by  Gupta kings . It was rebuilt twice after invasion, first after an invasion from the  Huns  in the 5th century BCE and then after an invasion from the  Gaudas  in the 7th century CE but abandoned after the third invasion by  Turkic invaders  in the 12th century. Takshasila  (in modern-day Pakistan) was the earliest recorded centre of higher learning in India from possibly 8th century BCE, and it is debatable whether it could be regarded a university or not in modern sense, since teachers living there may not have had official membership of particular colleges, and there did not seem to have existed purpose-built lecture halls and residential quarters in Taxila, in contrast to the later Nalanda university in eastern India.  Nalanda  was the oldest university-system of education in the world in the modern sense of university. There al
Post a Comment
Read more

Save a Workbook in another File Format

  Save a Workbook in another File Format When you save an Excel 2013 Workbook, by default it saves in the  .xlsx  format. Excel 2013 supports saving in other formats, but whenever you save a workbook in another file format, some of its formatting, data, and features might not be saved. File Formats (File Types) that are supported in Excel 2013 − Excel File Formats Text File Formats Other File Formats Excel File Formats Format Extension Description Excel Workbook .xlsx The default XML-based file format for Excel 2007-2013. Cannot store Microsoft Visual Basic for Applications (VBA) macro code or Microsoft Office Excel 4.0 macro sheets (.xlm). Strict Open XML Spreadsheet .xlsx An ISO strict version of the Excel Workbook file format (.xlsx). Excel Workbook (code) .xlsm The XML-based and macro-enabled file format for Excel 2007-2013. Stores VBA macro code or Excel 4.0 macro sheets (.xlm) Excel Binary Workbook .xlsb The binary file format (BIFF12) for Excel 2007-2013. Template .xltx The defa
Post a Comment
Read more

ORGANIZATIONAL STRUCTURE OF A DEPARTMENT IN THE GOVERNMENT OF INDIA

  ORGANI
Post a Comment
Read more