I'm looking for a friendly technician to thoroughly clean my desktop PC and laptop, both physically and software-wise. The job includes dusting internal components, cleaning fans, reseating cables, and applying basic software cleanup to improve speed. I also want guidance on simple maintenance habits to prevent future slowdowns. Ideally, the person speaks clear English, can work around a noisy home office, and can start during the day. Please bring basic cleaning supplies and any tools you'd recommend for a safe internal clean. I have a Windows PC and macOS laptop, so experience with both would be great.