How can I optimize my computer. It is so slow running, searching is too long

The specs of the computer will help us help you.

Have you defragged? Cleared out malware, etc.

You can go into msconfig(through START and 'RUN') and turn off a lot of services that are not needed for everyday computing. If this is a home computer, I suggest turning off 'Fast User Switching' as well as 'Shadow Volume Copy' as those take up a bunch of resources

You can check out posts 3 and 5 in link below to help out with system speed
https://www.askmehelpdesk.com/computers-beginners/frequently-ask-questions-about-computers-233870.html