Cleaning system Files

[DigitalComfort]

My system is infected within some major system files.  Here is the list:

C:\windows\repair\updatr.exe
C:\windows\system32\service.exe
C:\windows\system32\svcvhost.exe
C:\windows\system32\svhost.exe
C:\windows\system32\tskman.exe

How can I clean these without further damage to my already fragile system?  Thank you in advance for all the help.

Digital Comfort

[Lisandro]

How can I clean these without further damage to my already fragile system?

Scan and send files to Chest instead of deleting them.

For further cleaning, I suggest you scan your system with antispywares and antitrojans applications (download, install, update and run them):
Ad-Aware
Spybot Search and Destroy
A-squared
Ewido