These two files were flagged as bad and I can't delete them:

[ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe

Filter hijack: text/xml - {807563E5-5146-11D5-A672-00B0D022E945} - C:\PROGRA~1\COMMON~1\MICROS~1\OFFICE12\MSOXMLMF.DL L

Any help?