After installing it my ‘Windows Security Centre’ has stopped recognising my Norton 360 firewall and virus protection. I have contacted Norton and all they recommend is that I sweep the issue under the carpet and switch off ‘Windows Security Centre Monitoring’ - something that does not fill me with much confidence...
My system also appears to have developed a few other quirks: when shutting down I have 1 or 2 AOL application (?) that I have to manually close before shut down completes.
I've look at trying to contact Microsoft but see that is just about impossible unless you want to pay a pricey fee - not too helpful when the most likely problem is with their update and you pay so much for the pleasure in the first place.
For the windows security problem have a look here and method B; click here . Not tried that myself but used the longer method of refreshing the repository folder; click here .Carefully follow the instructions. Although it shows for curing multiple AV's it will repair any faults. For AOL try the 'one click fixes'.