I need help cleaning and optimizing my computer in Ireland

I'm looking for a tech-savvy person to clean up my computer and improve performance. The tasks would include removing unnecessary files, uninstalling unused programs, organizing the desktop, running a malware scan, updating software, and optimizing startup programs. I use Windows 10/11 and would prefer guidance on ongoing maintenance to prevent lag. Please bring any necessary tools or software you trust and be prepared to explain the changes in simple terms. I have a moderate amount of data (photos and documents) and a few browser extensions I’d like reviewed for privacy and security.