Windows Defender Error Code: 0x80073afc

Have you ever run the Norton Removal Tool [1] and/or the McAfee Consumer Products Removal Tool? [2]

• Fact: Norton and McAfee applications are notorious for not uninstalling (or upgrading) cleanly. The "leftovers" may be your troublemaker here.

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[1] ftp://ftp.symantec.com/public/english_us_canada/removal_tools/Norton_Removal_Tool.exe

[2] http://us.mcafee.com/apps/supporttools/mcpr/mcpr.asp

me again here is the link

https://onedrive.live.com/redir?resid=CF1982CC2D5EF0FC!110&authkey=!AMVmouxzEesN3-M&ithint=folder%2c

as for Norton or mcafee its been 3 years I don't remember but probably a 3 month sample of one or other was on

I suggest you read Ramaswamy's 26 Mar-15 post again:

• From an elevated command prompt, change directory to “%programfiles%\Windows Defender” (eg: c:\Program Files\Windows Defender)
• [At the command prompt, type] MpCmdRun.exe -GetFiles [and press ENTER key]
• The output in the command prompt will show the path to a cab file. Please share the [resulting path] with us by uploading the file to your OneDrive [account then post a] link to the file.

PS: Is Windows 8.1 installed? Has Norton application or a McAfee application EVER been installed on the computer since you bought it? Did a Norton free-trial or a McAfee free-trial [PICK ONE] come preinstalled on the computer when you bought it? (Doesn't matter if you never used or Activated it.)

yes I have  onedrive why do you ask

@yellenderreddy => Do you know what OneDrive is?