Hi there, I'm looking for a patient tech assistant to clean up my desktop and improve performance. My computer has started running slowly, with some unnecessary files taking up space and a few programs that auto-start too often. I’d like a thorough cleanup: remove junk files, uninstall unused apps, clear caches, organize files, and optimize startup programs. If you can also run a quick malware scan and update essential software, that would be great. I prefer someone who communicates clearly and can explain steps in simple terms. Please let me know the estimated time and any prep I should do beforehand.