Microsoft essentials not updating
Microsoft Security Essentials provides most of the protection methods that Windows Defender does with the exception of rootkit and bootkit protections.It is important to note that Microsoft Security Essentials is designed to provide a basic level of free protection for home or small business PCs rather than important server infrastructure.If the machine is not connected to the Internet, it will display “Microsoft Security Essentials wasn’t able to complete the virus and spyware definition updates.Make sure your computer is connected to the Internet and try again” error.Please note that Microsoft Security Essentials can only be installed on Windows Vista and Windows 7, as on more recent Windows iterations it is superseded by Windows Defender.Therefore, you should point to the Windows Defender Definition Updates if you are running Windows 8 or higher.
Although Microsoft clearly states on the Microsoft Security Essentials system requirements page that an Internet connection is required for installation and to download the latest virus and spyware definitions, you can still update the MSE offline.
Once you grab the setup file you need, just double click on it and follow the on-screen instructions to apply the latest definitions to Microsoft Security Essentials.
The installer contains the complete, up-to-date anti-malware definitions for Microsoft Security Essentials, deploying the scanning engine (mpengine.dll), along with other files, such as mpasbase.vdm, mpasdlta.vdm, mpavbase.vdm, mpavdlt.vdm,
The Microsoft Security Essentials Definition Updates deploys a package containing the latest virus signatures for the latest release of Microsoft Security Essentials.
Keeping Microsoft Security Essentials up-to-date ensures that your computer is protected at all times and that the latest viruses and spyware variations will be detected during scanning.
Of course, you need a computer with Internet connection to download the offline updates!