Top 10 Most Common Computer Problems

Although the business can often solve most complex computer issues at work, many other small but common issues occur on a regular basis on a personal computer. The good news is that many computer problems have simple solutions, and learning to recognise and fix a problem will save you a lot of time and money. The following are the top 10 common computer problems that you shouldn’t panic over.

The Computer Won’t Start

One of the most frustrating computer problems is when the computer won’t start. Various factors, such as a failing power supply, faulty hardware, or a corrupt operating system, can cause it. If your computer suddenly shuts off or has difficulty starting up, check if it’s properly plugged into the power source. If that doesn’t work, try testing the power point with another working device to confirm whether there is adequate power. If the issue persists, you may need to call a professional to diagnose and fix the problem.

The Screen is Blank

If you turn on your computer, but the screen remains blank, there may be an issue with the connection between the computer and the screen. Firstly, ensure that the monitor is properly plugged into a power source and that the connection between the monitor and the computer hard drive is secure. If the issue persists, it may be a hardware problem, and you may need to call a professional to fix it.

Abnormally Functioning Operating System or Software

If you experience a slow, unresponsive, or malfunctioning operating system or software may be due to a virus or malware. Try restarting your computer and running a virus scan to detect and remove any malicious software. To prevent this issue from occurring, it’s recommended to install reliable anti-virus software and keep it updated regularly.

Windows Won’t Boot

If you have trouble booting Windows, you may have to reinstall it with the Windows recovery disk. Before attempting to reinstall the operating system, try booting the computer in safe mode. This allows you to troubleshoot the issue without any third-party applications interfering with the process.

The Screen is Frozen

When your computer freezes, you may have no option but to reboot and risk losing any unsaved work. Freezes can indicate insufficient ram, registry conflicts, corrupt or missing files, or spyware. Press and hold the power button until the computer turns off, then restart it and clean up the system, so it doesn’t freeze again.

Computer is Slow

If your computer is slower than normal, you can often fix the problem simply by cleaning the hard disk of unwanted files. You can also install a firewall, anti-virus, and anti-spyware tools and schedule regular registry scans. External hard drives are great storage solutions for overtaxed CPUs and help your computer run faster. Another solution is to upgrade your computer’s RAM or replace the hard drive with an SSD.

Strange Noises

A lot of noise coming from your computer is generally a sign of either hardware malfunction or a noisy fan. Hard drives often make noise just before they fail, so you may want to back up information just in case, and fans are very easy to replace. If the noise persists, you may need to replace the hardware causing the issue.

Slow Internet

To improve your Internet browser performance, you must frequently clear cookies and Internet temporary files. In the Windows search bar, type ‘%temp%’ and hit enter to open the temporary files folder. You can also try resetting your modem or router or upgrading your Internet package with your service provider.


An overheating computer is a common problem that can lead to serious hardware damage if not addressed promptly. Various factors, such as dust accumulation inside the computer case, a malfunctioning cooling fan, or a clogged heat sink, can cause this issue. To prevent overheating, ensure the computer’s ventilation system is free from dust and debris. You can use a can of compressed air to blow out any dust build-up in the fans and heat sink.

Dropped Internet Connections

A dropped internet connection is a frustrating issue that can interrupt your work or browsing experience. This problem can be caused by various factors, including a weak Wi-Fi signal, outdated network drivers, or a faulty modem or router. To troubleshoot this issue, start by resetting your router or modem. This can often resolve connectivity problems caused by temporary glitches. If the issue persists, connect your computer directly to the modem using an Ethernet cable to determine whether it is with the Wi-Fi connection or the modem itself.


In conclusion, while complex computer issues often require the assistance of an IT support team, many small and common problems can be solved easily by the user. Users can save time and money by learning to recognise the most common computer problems and their solutions. From computer startup issues to dropped internet connections, this article has highlighted the top 10 most common computer problems and provided tips to help users troubleshoot and resolve these issues. Whether it’s clearing temporary files, upgrading RAM, or cleaning dust from the ventilation system, users can take many simple steps to keep their computers running smoothly. If you have any issues or need computer repairs in Bristol, contact PC Dial A Fix; we will gladly help.