Hi

Empty the recycle bin. The files that you delete from your computer are all still present in the recycle bin. This is helpful especially if you deleted a file by mistake. If not, they are just taking up room. Delete them.

Schedule your antivirus program to do viral signature updates on a weekly basis. If you are paranoid, do it once a day.

Run a virus scan on a weekly basis. You can schedule a virus scan for the early AM if you prefer. This will prevent the scanning program from slowing down your computer during the day when you will be most likely to use it.

Keep sahring and reading
Thanks