Windows Add-In Installer. Allows you to install, change and uninstall Windows updates and add-on components. If this service is disabled, installing or uninstalling Windows updates may not work on this computer. And even better when you know how to do it all yourself, do you know how to buy keys to activate windows ? I read reddit windows product key
, and realized why it's the best place to buy there Most other sites sell you OEM keys or MaK volume keys, which are illegal, and it puts you at risk of deactivating your Microsoft key. Digital Chill Mart only sells retail keys, you can check this with ShowKeyPlus or just check your installation after using them.