This occurs when your 8 / 2012 is behind a WSUS, to fix this you need to set an extra policy.
Computer Configuration/Administrative Templates/System/Specify settings for optional component installation and component repair
This can be set to either bypass the wsus for there components or to use a local share to retrieve them.
(In Windows 8 and in Windows Server 2012, the .Net Framework 3.5 is a Feature on Demand. The metadata for Features on Demand are included in Windows 8 and in Windows Server 2012. However, the binaries and other files associated with the feature are not included. When you enable the feature, Windows tries to contact Windows Update to download the missing information to install the feature.
The network configuration and how computers are configured to install updates in the environment can affect this process. Therefore, you may encounter errors when you first install such features. )
This tool will let you create a bootable USB-stick/CD/ISO to boot your infected pc and do an offline scan for malware
To display all wireless profiles on your windows start a dos-prompt an type the following command:
netsh wlan show profile
To export/backup all profiles:
create a backup folder
netsh wlan export profile folder=c:profiles
(This will export all profiles in separate .xml files)
To export specific profiles add name=”profilename”
netsh wlan export profile name=”profilename” folder=c:profiles
To export the keys in clear text add key=clear
netsh wlan export profile folder=c:profiles key=clear
To import the xml file to another system (works only if exported with key=clear)
netsh wlan add profile filename=”c:profilesprofilename.xml’
By default shutting down windows 8 will log you off and partially hibernate your os to make faster start-ups possible, on some systems this will cause the standby light to stay turned on when the system is down.
To completely turn off your pc instead, the easiest way is:
on the keyboard type windows + I (to get to the settings in the charms bar)
select the power icon which gives you the sleep/shutdown/restart options
select shutdown while pressing the shift button.
keep in mind, start-up time of the machine will be a bit longer due to the complete startup.
Nice post on how to configure Server Essentials 2012 and office 365 by Jethro Seghers can be found on his blog: