I added the MsMpEng.exe process in Microsoft Security Essential Excluded process list. But no such luck, for a moment it was gone then it started up again. I have removed MSE and the CPU is running normal. I'm going to try Panda Security.
Real Time protection - MSE
Firewall - PC Tools
On Demand - Super Antispy , Malware Bytes, and Hitman Pro
On the Daily - Glary Utilities, TuneUp Utilities, Sandboxie
Downloading - SeedStorm, CuteFTP Pro
OS - Windows XP Pro 32bit