Update for Windows Defender - KB2267602

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Apologies if in wrong section .Since purchasing Avast Internet Security a few weeks back when I try to download Windows  Defender definition file (KB2267602) which shows daily  as updates available on start up , it  fails every time  .I have checked Windows Defender which is disabled , so should not be getting updates ? Most annoying seeing " updates available " every day and on checking it is only this . Any simple remedies or advice available for this other than uninstalling Avast ? I have tried various suggestions over the last few weeks to no avail , thank you for any help given .

Windows 8.1 64-bit . Internet Explorer 11

[bob3160]

See if this helps you:
http://www.howtogeek.com/howto/15788/how-to-uninstall-disable-and-remove-windows-defender.-also-how-turn-it-off/

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Thank you for reply .Tried link , no success  and double checked that  Defender switched off .

[Pondus]

try turn on defender download and install updates and turn off again

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try turn on defender download and install updates and turn off again

Thought of that too , but unable to switch on .Get Error Code 0x8007139f which seems to infer it is caused by virus protection switching off Defender .

P.s
Tried temporarily disabling Avast and trying  to no avail

[bob3160]

try turn on defender download and install updates and turn off again

Thought of that too , but unable to switch on .Get Error Code 0x8007139f which seems to infer it is caused by virus protection switching off Defender .

P.s
Tried temporarily disabling Avast and trying  to no avail

Wonder if running system file checker  would do any good It certainly isn't going to harm anything.
sfc /scannow

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Ran system checker as sugested and got this ,

 " Windows Resource Protection found corrupt files but was unable to fix some of them. Details are included in the CBS.Log %WinDir%\Logs\CBS\CBS.log.windr\Logs\CBS\CBS.log .For example C:\Windows\Logs\CBS\CBS.log .Note that logging is currently not supported in offline servicing scenarios .

Tried to view files but was unable , cant remember message that came up .Now getting out of my depth being a 70 yr old where  computer skills  are not my forte !! Read somewhere that Avast shuts off Windows Defender when installed , hence unable to reactivate and download updates to clear message ? Think I might have to bear it though very annoying .Appreciate all help given to try and solve this .

[bob3160]

You could always uninstall Avast, reboot, updated defender, re-install Avast.

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 " You could always uninstall Avast, reboot, updated defender, re-install Avast. "

Did think of trying that but would have to do same every time any update available , thought I could have found another more permanent solution . May try later on returning from my daily walk , appreciate advice given .

[bob3160]

" You could always uninstall Avast, reboot, updated defender, re-install Avast. "

Did think of trying that but would have to do same every time any update available , thought I could have found another more permanent solution . May try later on returning from my daily walk , appreciate advice given .

This should not be a daily thing. I'm hoping that by allowing windows to be up to date and then installing Avast that the current problem will resolve itself.

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" Houston , we HAD a problem " now solved .

Returned from my daily constitutional walk and removed Avast .This now allowed me control over Windows Defender which allowed me to update which I was  unable to do before , even when temporarily disabling Avast .Re installed Avast and reactivated , all systems go ! Surely the boffins at Avast could make this simpler to overcome ? From across the pond , many thanks for help given .

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Forgot to add , on re installing Avast , pop up box appeared saying a programme was trying to turn off Windows Defender .Confirms who the culprit was causing the  fault .

[bob3160]

Forgot to add , on re installing Avast , pop up box appeared saying a programme was trying to turn off Windows Defender .Confirms who the culprit was causing the  fault .

Glad to hear that. There was never a doubt that it was Avast turning off Defender. In your case, it just left you with a problem which should not have happened.

[drawlings]

Hi,
I realise this is an old topic but I'll start here since I've got such a similar problem.
A while ago one of my computers wouldn't boot after a Windows Update. I managed to roll that back and have done a bit more investigating into what updates had not been working. And one of the ones that seems to keep failing to install is:
"Security Intelligence Update for Microsoft Defender Antivirus - KB2267602 (V..."
I sought some advice and they suggested I turbined off the Avast real time protection. Whilst thinking about that I found this topic and, since it seemed to describe the same situation as I find myself in, I  uninstalled Avast. However I couldn't get Windows Defender to start, it gave me a message saying that the service couldn't be started.
"The service couldn't be started."
I tried Windows Update anyway and my computer locked up, no response to keyboard, mouse or brief presses of the power button...
I realise that this forum may not be able to help with the Windows Update (but if anyone has any suggestions, please let me know) but I am wondering if anyone has any advice on how to get Windows Defender started again after Avast switched it off.

[bob3160]

Hi,
I realise this is an old topic but I'll start here since I've got such a similar problem.
A while ago one of my computers wouldn't boot after a Windows Update. I managed to roll that back and have done a bit more investigating into what updates had not been working. And one of the ones that seems to keep failing to install is:
"Security Intelligence Update for Microsoft Defender Antivirus - KB2267602 (V..."
I sought some advice and they suggested I turbined off the Avast real time protection. Whilst thinking about that I found this topic and, since it seemed to describe the same situation as I find myself in, I  uninstalled Avast. However I couldn't get Windows Defender to start, it gave me a message saying that the service couldn't be started.
"The service couldn't be started."
I tried Windows Update anyway and my computer locked up, no response to keyboard, mouse or brief presses of the power button...
I realise that this forum may not be able to help with the Windows Update (but if anyone has any suggestions, please let me know) but I am wondering if anyone has any advice on how to get Windows Defender started again after Avast switched it off.

You either use Defender or Avast. That's the reason Defender turns itself off when you install Avast.
One should never run more than one resident AV at a time. Doing so can cause serious problems.
If you want to turn defender on, you could set Avast to Passive Mode - It turns Avast's protection off.
You can make that change in the settings under Troubleshooting.