Windows 7 Ultimate SP1 - Firewall won't start, BFE won't start, access denied

I was working on a PC and the firewall would not start it had been infected by malware, I had cleaned it up but it still wouldn’t start. After some Bing’ing :-)   I came across this utility of Eset. https://kb.eset.com/library/ESET/KB%20Team%20Only/Malware/ServicesRepair.exe

Download it and ran it and all started working as you would expect. :-)