My PC Specs :
4GB DDR2 RAM
Pentium (R) Dual Core CPU E5300 @ 2.60 GHZ
ATI Radeon HD 4650 1GB
My Problem :
When I start my pc it makes a medium-loud sound and after the welcome screen I notice that the processor usage is very high ( more than 70% )
and the pc is very slow ( almpst unusable ) for 5-10 minutes and the sound is continuously produced . After 5-10 minutes the computer is fast as usual and I'm able to operate it properly.