Help asap plz also warning

Guys this is a Warning + a problem i got i have a keylogger on my comp i think i opened task manager today had some lagg when i played and i found a prosses named winlogon description the name of the Crack i downloaded from razor a fake on perhaps
any1 know how i can remove something like this i cant cansel the prosses and i can even remove the pop upp from it winlogon.exe- no disk there is no disk in the drive plz insert a disk into driver/device/hardrive/DR1 can any1 help
also if it is i might get hacked so dont download anything i post

Thx for reading plz help !! :<

The Windows Logon Process is responsible for managing user logon and logoff, and checks the Windows XP activation code. Must be in system32 folder