Need IT help with a small computer issue in Galway

I'm looking for a friendly IT helper to assist with a small computer issue at my home in Galway. The task involves diagnosing a slow Windows PC, updating essential software, and ensuring antivirus is active. If possible, please bring a USB drive for backup and be prepared to explain steps clearly. I’d also appreciate tips on improving overall performance and a quick check of Wi‑Fi stability. I’m flexible on timing but would prefer a session during the morning or early afternoon.