PC Repair Know-How

Virus and malware infections remain one of the most common reasons people contact us, and the threats have become considerably more sophisticated in recent years. Ransomware — malicious software that encrypts your files and demands payment to restore them — has moved from targeting large corporations to hitting ordinary home users and small businesses. A single click on the wrong email attachment can be enough.

The damage can be severe: a ransomware attack on a small accounting firm can wipe years of client records within hours if backups aren't in place. This is why we always stress to our customers across Anglesey that regular, tested backups are non-negotiable. Cloud backup services and external hard drives both work — ideally, you should have both.

On the prevention side, keeping your system fully updated is the single most effective thing you can do. Security patches are released by Microsoft, browser makers, and software vendors on an almost daily basis, and each one closes a vulnerability that attackers could otherwise exploit. Windows' built-in Defender antivirus is now genuinely capable for most users — the days of needing a paid third-party suite are largely behind us, provided Defender is kept up to date and full weekly scans are run.

When infection does occur, the priority is to disconnect from the internet immediately to stop any further spread or data exfiltration, then seek professional help. Attempting to remove sophisticated malware without the right tools can sometimes make things worse — or leave hidden remnants that re-infect the machine later. Our removal service uses up-to-date specialist tools and finishes with a full system health check so you can be confident the threat has been completely eliminated.

Neil's tip: If something looks suspicious — an unexpected pop-up, a programme you didn't install, or your browser homepage has changed without you doing anything — don't ignore it. The earlier an infection is caught, the simpler and cheaper it is to resolve.