[syneticon]

C:\Users\Owner\AppData\Roaming\WinDir\Svchost.exe (Trojan.PWS) -> Unloaded process successfully.

Everytime I scan I remove 2 viruses and one is left becuase of this and it reinstalls all the other viruses.
how can i remove it?

[tinmandon]

Scan with SpyBot and see what happens...!!

[Zeon]

Sounds like a rootkit, try GMER.

[Paradoxum]

What scans have you done?

Download Malwarebytes' Anti-Malware. Update it and run a full scan. Remove everything it finds.