Need help cleaning my computer and optimizing performance

I'm looking for a friendly tech person to take a thorough look at my desktop. It needs a careful cleanup, removing unnecessary files, temporary data, and malware scans if needed. I also want a few basic performance tweaks: clearing startup programs, optimizing disk space, and updating software where appropriate. My PC runs Windows 10/11 and has a few cluttered folders, plus I’d like guidance on ongoing maintenance. Please bring your own external drive and ensure data privacy. A quick 1-hour session would be great, with the option for a follow-up if more work is needed.