virus n error loading problem

The following message keep coming up when I start my computer:
Kp Quicken Function.exe has encounter a problem and needs to close. We are sorry for the inconvenience.

Also the following error message appears:
Errorloading C:\WINDOWS\ojexiyayidad.dll

the specific module could not be found.

there are other unwanted website pops up as well.

Can u help me to fix it.

Thank you