A few days ago, I was expecting my ISP to significantly upgrade my connection speed. At midnight, Comodo detected a new network. I allowed this, thinking it was part of the upgrade. Sure enough, the upgrade had been implemented. Is this usual for a cable modem? Today, I deleted a folder of files. I used DataRecovery (DR) to undelete a few but DR also found numerous strange files such as: sxproxy.dll syskey.exe sti.dll ssshim.dll sstpsvc.dll systray.exe sysntfy.dll sysclass.dll sxstrace.exe sxproxy.dll SubRange.uce streamci.dll systemcpl.dll TabbtnEx.dll TRACERT.EXE thumbcache.dll termsrv.dll tdh.dll tcpmonui.dll tdh.dll tcpmib.dll webcheck.dll url.dll vss_ps.dll There were multiple instances of each of the above files. The original location, supposedly, was my folder but this is not possible. An AV scan found nothing. Can anyone throw any light on this? Thanks in advance.