Start with the usual:
Defrag, Chkdsk, virus and spyware scan.
Do you get error messages?
Are any other programs slow?
Is your HD getting full?
Is windows up to date?
I have allready done all things,
I have Dfrag,chkdsk,Virus Scan,
But I did'nt get any error message .
only Corel Draw is working slowly otherwise all program's working properly and I think I did not check my HD that it is full or not Thnx to sugest me . After that I"ll get back to you.