Windows Security for You!
Windows Security for You!
Consider looking up reliable sources on safe methods to remove startup items from Windows. Increasing RAM is suggested as a long-term fix.
What kind of CPU are you looking for? Possibly a Celeron, or maybe something better like Celery.
You're on the right track with the storage options and SSD. I understand you're seeking a workaround for antivirus software so you can run Windows smoothly.