my comp runs very slow after its been on for a little while. when i check the task bar the prcess labeled system SYSTEM is running 40 to 50% of my cpu. what is going wrong?1 person needs an answerI do too

Some driver or kernel mode component is running amok, or you are experiencing a hardware problem. To diagnose, check the behavior in safe mode or clean boot - does it exist there? To try to get more details about what's going on, run Process Explorer when the problem is happening. Sort the CPU column in descending order and note the process that is at the top. According to what you say, it is SYSTEM, with PID (process ID) 4. Then, double-click on the SYSTEM process and go to the Threads tab. Sort the list by CSwitch Delta in descending order. What is the full stack of the topmost thread at this time?