I'm looking for someone to clean up my computer and improve its performance. It’s a 6-year-old Windows PC with about 500 GB used and several unused apps. I’d like a full system cleanup including disk cleanup, removing bloatware, organizing files, cleaning malware if found, updating software, and optimizing startup programs. Please advise on best practices for antivirus and privacy settings. I prefer a quiet, non-technical explanation during the session and a short summary of changes at the end. Ideally, the job should be completed in a single session with clear steps and recommendations for ongoing maintenance.