videobruce said:
Apparently the problem is here, though not confirmed yet;
Error 0x00000154 when trying to share files - RT Se7en Lite
Base filtering engine, ok, did you at one point have McAfee installed on this system?

Can you check to see if Network Discovery and File and Printer sharing is staying turned on in the Network and Sharing Center?

These are the typical symptoms of a corrupted base filtering engine which will require a repair.

If you need to repair the base filtering engine there is a way to fix that problem, just follow the directions in the link. You need to run the ServiceRepair.exe. :)
http://kb.eset.com/esetkb/index?page...nt&id=SOLN2861