Windows Communication Foundation ( WCF ) Tutorial

Describes how to resolve the issue where error 0x80070645 occurs when you try to upgrade Microsoft Security Essentials.

Install System System Endpoint Protection (SCEP) During SCCM OSD Task Sequence Process

SCEP error code 0x080070643. 0 votes. error; 0x080070643; asked Jul 18 by anonymous. Please log in or register to answer this question. … Error 0x80070643… Error code:0x80070645. … the ENGLISH version and the installing the ENGLISH version of SCEP.

When installing SCEP on my Windows Server 2012 site sever I ran into a what seems like an undocumented issue. In my case, the definitions failed to download.

0x80070645 = This action is only valid for products that are currently installed. … The trade off is that SCEP is in english, but it’s not a big deal, because client will rarely access the client. Proposed as answer by Systems U-TAD Thursday, September 06, 2012 9:39 AM;