Fix: Security essentials error 0x80080005

Security essentials error 0x80080005 occurs when the definitions file in essentials fails to update itself  from Microsoft. Even though; most of the users now a  days don’t use essentials; and i would never recommend anyone using it because it always has issues and conflicts with other anti virus software’s. If you decide  to switch from essentials to something else; then i would recommend using AVG and we can stop right here. BUT if you wish to continue with essentials; then proceed with the steps below:

First, you have to identify any anti virus sofwares other then essentials already running on your system; when you’ve found them you need to uninstall them and if they have already been uninstalled, then you need to have it’s traces removed. To do that; download RevoUninstaller and use the Advance Scan option (where you will  put the name of the anti virus software in the exact name field; and remove it) eg: AVG


Once you have removed traces of the previous  anti-virus software the next step is to run winsock command which you can do by following the steps below:

a) Click start and type cmd


b) Right click cmd and select run as administrator

c) In the black command prompt that opens up type

netsh winsock reset


d) Hit the Enter key and then reboot your system.

e) After the system reboot; go back to the command prompt and type

wuauclt.exe /updatenow

then hit the Enter key. Wait for a few minutes (40 to 50) minutes and then try to update Microsoft Security Essentials.

Kevin Arrows
Kevin is a dynamic and self-motivated information technology professional, with a Thorough knowledge of all facets pertaining to network infrastructure design, implementation and administration. Superior record of delivering simultaneous large-scale mission critical projects on time and under budget.

Expert Tip

Fix: Security essentials error 0x80080005

If the issue is with your Computer or a Laptop you should try using Restoro which can scan the repositories and replace corrupt and missing files. This works in most cases, where the issue is originated due to a system corruption. You can download Restoro by clicking the Download button below.

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