I'm looking for a technician to clean up my computer and optimize its performance. I have a Windows PC with about 8 years of use. The main goals are to remove unnecessary files, uninstall unused programs, clean up the registry, run a malware scan, and optimize startup processes. Please include guidance on basic maintenance to prevent buildup. Availability this week, with flexible start time. Access to the device will be in my home, and I can provide any required passwords or access as needed. If you can also suggest a few privacy and security tweaks, that would be great.