What must you do with antivirus software to make it protect effectively?

Your computer running windows 10 is doing some very strange things with the operating system. you are fairly certain it is not a hardware issue. you need to try to get further insight into what is going on within the operating system. which tool would be best suited for this?

When you mouse over and click to add a search term this(these) boolean operator(s) is(are) not implied. (select all that apply)?

Which excel file extension stores automated steps for repetitive tasks?