I'm looking for someone to help with a thorough cleanup of my computer. Specifically, I need a technician to run a system cleanup, remove unwanted programs, organize files, and optimize performance. I also want guidance on better folder structure and basic backup setup. Preferred: quick, careful, and non-destructive approaches, with clear explanations so I can maintain things myself. If possible, please bring or confirm any software tools you recommend for a safe cleanup. About the device: a mid-2015 Windows PC; user account with admin rights will be provided. Note: I’d like an on-site visit if feasible, otherwise remote guidance with a stepsheet works too.