Question: After I start my Dell Inspiron 4150 and select the first program, the CPU usage goes from the idle process to 100% CPU usage. This causes the computer to slow down and generate program not responding windows. For example, I started the computer 2 days ago, after windows loaded, I selected my AVG antivirus for scanning of the whole computer, the CPU went to 100% and finally after 2.5 days completed the scan. Any help or direction in which to look would be appreciated. Thanks for any replies.
Answer: When the processor goes to 100% is it from the same program every time? Go into Task Manager and then the Processes tab and sort by Mem Usage and then CPU and see if any process has a really high value. Then lookup that process online if its not obvious what it is by looking at it. You can also right click the process and choose End Process and see if that makes the CPU level go back to normal.
I would also go through your startup items using msconfig and uncheck anything that you don't need to boot with your computer. Most things in the list can be safely unchecked. You can lookup the items online if you cant tell what programs the relate to by the name.