From: PA Bear [MS MVP] on
Make sure the Windows Firewall is enabled & connect via a router, if
possible.

NB: You can download the installer for MSE while Avast is installed then go
offline to uninstall Avast & reboot. But you must be online to be able to
install MSE (and Validate).


CarlosF wrote:
> Many thanks PA Bear, I'll do that.
>
> (Although the thought of being momentarily unprotected is a bit
> unsettling..)
>
>
> "PA Bear [MS MVP]" wrote:
>
>> Uninstall Avast & reboot.
>>
>> Do a clean install of MSE & reboot.
>>
>> For further assistance, post in the appropriate MSE forum:
>> http://social.answers.microsoft.com/Forums/en-US/category/mse
>>
>>
>> CarlosF wrote:
>>> Thanks for the reply.
>>>
>>> No, neither Norton or McFee, ever - only Avavst.
>>>
>>> And now, how do I recover/reinstall MSE back? It's not showing up in
>>> Windows
>>> Update anymore.
>>>
>>>
>>> "PA Bear [MS MVP]" wrote:
>>>
>>>>> Then I noticed that there was a mention somewhere about removing any
>>>>> anti-virus/anti-spyware installed.
>>>>
>>>> There was a very prominent notice about this when you installed MSE.
>>>>
>>>>> Do I really need to uninstall Avast?
>>>>
>>>> Yes. Only one (1) anti-virus application should be installed & loading
>>>> at
>>>> boot!
>>>>
>>>> Has a Norton or McAfee application ever been installed on the computer
>>>> (e.g., a free-trial version that came preinstalled when you bought it)?
>>>>
>>>> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>>>
>>>> Microsoft Security Essentials Support Forums
>>>> http://social.answers.microsoft.com/Forums/en-US/category/mse
>>>>
>>>> Can I install Microsoft Security Essentials [or any other
>>>> anti-virus/anti-spyware application] to clean up my already-infected
>>>> computer?
>>>> http://social.answers.microsoft.com/Forums/en-US/msescan/thread/87058857-d181-4019-a723-efd9a49d9275
>>>> --
>>>> ~Robear Dyer (PA Bear)
>>>> MS MVP-IE, Mail, Security, Windows Client - since 2002
>>>>
>>>>
>>>> CarlosF wrote:
>>>>> Within the last week or so I got a new update for Microsoft Security
>>>>> Essentials, an upgrade package - KB2254596, I think.
>>>>>
>>>>> I've got a machine with WinXP+SP3 and I am also running:
>>>>> Avast Anti-virus and Sygate Personal Firewall.
>>>>>
>>>>> Now, the installation of the package failed (error 0x80070643:, I
>>>>> believe).
>>>>>
>>>>> I rebooted the machine - still failed.
>>>>>
>>>>> Then I noticed that there was a mention somewhere about removing any
>>>>> anti-virus/anti-spyware installed. Well, I just stopped the Anti-virus
>>>>> and
>>>>> then stopped all the services related to it, hoping this would work.
>>>>>
>>>>> It didn't - now my Microsoft Security Essentials is gone (??) and
>>>>> obviously
>>>>> I had to activate Avast again.
>>>>>
>>>>> Any hint about:
>>>>> - cause?
>>>>> - solution?
>>>>>
>>>>> (Do I really need to uninstall Avast?)
>>>>>
>>>>> Thanks in advance for any help.
>>>>
>>>> .
>>
>> .