"C:\Program Files\Windows Defender\MpCmdRun.exe" -SignatureUpdate But you will need of any some internet connection...
Bitdefender 2014 for sure is the best for Windows 8 or Windows 8.1 in almost every category. Best lightweight antivirus is ESET v6 or v7 beta (it has no difference). Best free is AVG 2013. AVAST maybe v9 beta but stil it has a lot of bugs and v8 is s**t it is not for windows 8 pc. It has a lot of errors and bugs (in my case BSOD always when i open it). AVIRA ok, i guess. Windows defender no, no and no.
You know that you need to install ConfigMGR to use SCEP right? You can extract the client from the package but then it is the same as Windows defender...
norton antivirus/norton internet security 2013/2014 final worked perfectly without any issue in windows 8 or 8.1
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