2
I am trying to install SP1 on a Windows 7 Ultimate box using Windows Update, but it fails with this code: 800F0A09 and no further explanation. I have tried to google that, but I am not getting anything useful back. Windows online help is not useful either...
Any suggestion?
Thanks!
Palantir
Posted 2011-03-14T07:48:17.997
Reputation: 548
2
According to a german blog article it's a problem with Microsoft Security Essentials or Microsoft Forefront Client blocking the installation/deinstallation process. It advises to update those packages. See also this Microsoft page.
p.vitzliputzli
Posted 2011-03-14T07:48:17.997
Reputation: 587
0
I accept that the Online Windows Update should work without any problem, but in your case it has not worked. Hope this is not a bug and something to do with Internet download/connection!
I always prefer the Offline Installer, which gives me flexibility to install it at any time or on any number of computers. Give a try with the Offline Installer:
kamleshrao
Posted 2011-03-14T07:48:17.997
Reputation: 815
0
The hotfix Forefront Client Security Antimalware Update may not work, depending on your version of Forefront. You may try uninstalling forefront, installing sp1 via windows update, and re-installing Forefront afterwards. This worked for me, but the above answer did not.
pho79
Posted 2011-03-14T07:48:17.997
Reputation: 101
It was forefront, the hotfix linked here: http://support.microsoft.com/kb/2394433/ allowed me to install SP1 fine. Thanks :)
– Palantir – 2011-03-14T09:35:13.603