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Common Computer Faults You Could Solve Yourself

Computers have revolutionized the way we live, communicate, and work. From connecting with loved ones to running a successful business, these machines have become indispensable tools in modern society. However, like any machine, computers are prone to faults and malfunctions. Whether it’s a hardware or software issue, a malfunctioning computer can cause a great deal of frustration and potentially even lead to lost data or work. That’s why it’s essential to know how to troubleshoot and solve common computer faults.

In this article, we’ll provide you with expert guidance on diagnosing and fixing some of the most common computer issues, as well as tips for eliminating the occurrence in the first place.

Common Computer Faults

When a computer is not working correctly, it can be challenging to identify the cause of the problem. However, understanding common computer faults is the first step in troubleshooting the issue. The following are some common computer faults you may encounter:

Power Issues

A computer failing to turn on or shut down correctly is one of the most common faults. In addition, a faulty power supply, a dead battery, or problems with the power cord or outlet can cause these issues.

Slow Performance

Slow performance is a common issue that affects many computer users. It occurs when a computer runs slower than expected, making it challenging to complete tasks quickly. Several factors can cause this problem, including a lack of memory or storage space, outdated drivers or software, and malware or viruses.

Blue Screen of Death (BSOD)

The Blue Screen of Death (BSOD) is a system error that can cause your computer to shut down unexpectedly. The often cause is hardware or software issues that prevent your computer from functioning correctly. The BSOD usually displays a specific error message that can help you identify the cause of the problem. These error messages can range from driver-related issues to faulty hardware.


Overheating is a common issue that can cause your computer to shut down unexpectedly. It occurs when your computer’s components, such as the CPU or GPU, get too hot and malfunction. Several factors, including dust buildup, a malfunctioning fan, or insufficient airflow, can cause overheating.

Internet Connectivity Issues

Internet connectivity issues can prevent your computer from accessing the internet or cause it to experience slow or unreliable connections. Several factors, including a weak Wi-Fi signal, network congestion, or faulty network hardware, can cause this problem.

Software Crashes

Software crashes occur when an application stops responding or shuts down unexpectedly. Several factors, including software bugs, incompatible software or drivers, and corrupted files, can cause this issue.

By understanding these common computer faults, you can be better prepared to troubleshoot and resolve any issues you encounter.

When your computer gets a fault, it is usually a hardware or software problem. The next part of this article differentiates the two and guides you on how to solve the issues independently.

Hardware Faults

Hardware issues refer to any problems that arise from physical components within a computer system. These components include the motherboard, RAM, hard drive, power supply, and more.

Hardware failure can occur when one or more components stop working correctly. The cause can be age, wear and tear, or physical damage. Hardware failure can manifest in different ways, depending on the failed component. For example, a failed hard drive can cause data loss, while a malfunctioning power supply can prevent your computer from turning on.

Identifying hardware issues

  • Strange Noises: If you hear strange noises from your computer, such as clicking, grinding, or whirring, this could indicate a hardware issue. These sounds may come from a damaged or malfunctioning component, such as the hard drive, cooling fan, or power supply.
  • System Crashes: Hardware issues can cause a system to crash or freeze. If you experience frequent system crashes, this could indicate a hardware issue.

Steps to take to solve hardware issues

  • Diagnose the Problem: Use hardware diagnostic software to determine which hardware component is causing the issue. It can help you pinpoint the problem’s source and identify the best solution.
  • Replace the Faulty Component: If you determine that a specific hardware component is the source of the issue, replace it with a new one. It could include replacing a failing hard drive, a malfunctioning cooling fan, or a faulty power supply.
  • Clean and Maintain Your Computer: Regularly cleaning your computer can help prevent hardware issues from occurring. In addition, keep the components free of dust and debris and ensure adequate ventilation.

By understanding how to identify and resolve hardware issues, you can keep your computer running smoothly and avoid costly repairs.

Software Faults

Software is a set of instructions that tell a computer what to do. It’s a program or application you can install on a computer or device to perform a specific task or function. Software can be thought of as the brain of a computer system, as it controls and manages all the hardware components and allows users to interact with the system.

Software issues refer to problems arising from a computer system’s software or operating system. Several factors can cause them, including corrupted files, viruses, malware, outdated drivers, or even compatibility issues with other software.

Identifying software issues

  • Crashing or Freezing: If a program crashes or freezes frequently, this could be a sign of a software issue. Corrupted files or conflicts with other software could cause it.
  • Error Messages: Error messages can provide valuable information when identifying software issues. Pay attention to the error message and determine the software or process causing the problem.
  • Slow Performance: If your computer is running slower than usual, the cause could be a software issue due to outdated drivers, too many programs running in the background, or a corrupted operating system.
  • Pop-Ups and Strange Behavior: If you see pop-ups or strange behavior on your computer, such as new toolbars or changes to your homepage, this could indicate a malware or virus issue.

Steps to take to solve software issues

  • Scan for Viruses and Malware: Run a virus and malware scan to identify any potential threats on your system. Remove any identified threats and ensure that your anti-virus software is up-to-date.
  • Update Drivers and Software: Ensure that all drivers and software are up-to-date. Outdated software and drivers can cause conflicts and performance issues.
  • Clear Cache and Cookies: Clearing the cache and cookies can help to improve performance and fix issues with websites and applications.
  • Restore Your System to a Previous Point: If you’re experiencing a persistent software issue, consider restoring your system to a previous point, as it can help to undo any recent changes that may have caused the issue.

Preventing Common Computer Faults

Computer faults can have devastating consequences, causing you to lose essential data, compromise sensitive information, and potentially incur costly repair bills. Luckily, there are steps to prevent these common faults and protect your computer and data, as explained below.

Regularly Backing up Your Data

Backing up data is vital in case of a hardware failure, virus infection, or any other catastrophic event that could lead to data loss. Habitually back up important files and documents regularly to an external hard drive or cloud storage. This way, you can quickly recover your data in case of a fault.

Keeping Your Computer Up-to-Date

Keeping your computer up-to-date with the latest software and security updates is another essential step in preventing computer faults. Software updates often contain important bug fixes and security patches that can avoid potential vulnerabilities in your computer. Ensure to enable automatic updates for your operating system, software, and security software.

Using High-Quality Anti-Virus and Anti-Malware Software

Viruses and malware can significantly damage your computer’s hardware and software. However, high-quality anti-virus and anti-malware software can help prevent these malicious programs from infecting your computer. Make sure to choose reputable anti-virus software that offers real-time protection and frequent updates.

Limiting Downloads and Installing from Trusted Sources

Downloading software and files from untrusted sources can expose your computer to viruses, malware, and other malicious programs. Therefore, limit your downloads to trusted sources and avoid downloading files from suspicious websites. Also, be cautious when installing new software, read the terms and conditions carefully, and pay attention to any additional programs that may be bundled with the software.


It’s essential to be able to identify and diagnose both hardware and software issues. With these steps, you can effectively troubleshoot and solve common computer faults. However, when you encounter problems you cannot resolve, feel free to seek professional assistance.