Windows Defender Error Code 0x80073afc in Windows 8/8.1

Windows Defender is an Inbuilt anti-virus program. This Feature was added by Microsoft In Windows 8. Users Believe the inbuilt antivirus is not enough to keep their Pc safe from Malware and viruses so we usually Download other Antivirus. For those users who are depended or prefer using Windows Defender are facing some Problems with it. Windows Defender Error Code 0x80073afc is one such error that is causing Problems in Recent times.

Windows Defender helps to provide Real time Protection to your PC and so it is advised that you Automatically start it on Every Startup. It is also important to keep Windows Defender Up to Date for better Security.

Recently Windows Users are having problems with Windows Defender. It doesn't Start automatically and when you try to start it manually you get an error with a message box just like below Picture.
Windows Defender Error Code 0x80073afc


Methods to Fix Windows Defender Error Code 0x80073afc

We have Tried to Gather all possible methods that can be performed to Solve this error 0x80073afc in windows defender. 

Method 1: Remove 3rd Party Antivirus

Do you have any other 3rd Party Antivirus Installed and Running other than Windows very own Inbuilt Antivirus? If the answer is YES, then You might want to Uninstall all other Antivirus programs from your Computer. 
Many a times a Conflict may occur on your Computer. Your 3rd party antivirus might have turned off Windows Defender and won't allow it to Turn ON. So to Get rid of this Error and to Turn on Windows Defender, You need to Properly Uninstall other Antivirus Programs and then see if the Error still Persists.


Method 2: Deleting Malicious Registry Entry

If your Computer or Laptop is Infected with Malware or Viruses then there are chances that your Computer's Registry is Tempered to add malicious entry there. What this does is Virus Adds a Registry entry that don't allow your Antivirus to Run. You need to Delete these entries from your Computer if they Exists. Check Everything you need to know about Registry in Windows.

Start Run by holding down "Win" key then press "R" , Now type in "regedit". If you will be prompted for permission, Then Click on Yes, This will Open Registry Editor.

Now Navigate to HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\Image File Execution Options. and See if you can find entries like MSASCui.exe or MpCmdRun.exe, If yes, Then right click on them and Delete. Move to the next Method if you don't.

You see Registry Entries are Very important on any PC so i always recommend Special Registry tool Called Regserve which is by far the best tool too keep your PC Registry Clean and Organized which minimizes the chances of Errors in PC.


Method 3: System Restore Point

If Above 2 Methods Fails to Help you to get rid of Windows Defender Error Code 0x80073afc on your Windows PC then This Method Should Most probably help you.

If you have a Restore Point already on your Computer, Then thank God just now for that. You are gonna restore your PC to Previous Point when it was in Good State without Errors.

To Restore your PC to Previous Restore Point all you need to do is:
  • Open RUN
  • Type in "Rstrui.exe" and click on OK
  • Now wait a few Seconds and you will see System Restore Windows.
  • Click Next and Choose the Restore Point if you have many options there.
Once everything is done, Check if you are still getting Error Code 0x80073afc or not. Most of the times This Method works and should fix the error.

If you Have any other Method that helped you to fix this problem and want to contribute to this Article, kindly Comment below also Let us know which Method you used to solve the Issue.

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