Security essentials not updating manual update
Microsoft Security Essentials is a very powerful anti-virus tool for Windows 7, XP and Vista that is simple to use and typically installs very cleanly, but users often report issues with its update feature freezing or taking a long time.
Knowing what to do when update problems occur can help keep you happy with the free protection Microsoft provides.
Other Personally Owned computers should use Microsoft Security Essentials or Windows Defender.
UNH Students: Students are encouraged to use Microsoft Security Essentials, a free antivirus product for Personally Owned computers, on Windows Vista and Windows 7.
The system operates this way so that your first update will include the most up-to-date virus definitions and versions of its components.