I have a 2 GB RAM Vista with 80 GB hard disk(40% free). Even with no applications, I see physical memory used as large as 70% and high CPU usage. That makes my machine too slow and also makes a large sound and excessive heating. See screenshot for the task manager with just one explorer window open. One thing I noted was that IE is taking too much memory compared to my other machine indicating that applications are consuming more memory than normal.
please advise me what to do to resolve such problem.