Choose Your Language: International US DE ES FR
Hello Guest Login Here or

Microsoft Security Essentials

Downloading file: mseinstall.exe
Please select a download mirror: External Mirror 1 External Mirror (64 bit)

This is the download page for Microsoft Security Essentials. If you encounter any problems in accessing the download mirrors for Microsoft Security Essentials, please check your firewall settings or close your download manager.

Microsoft Security Essentials is offered as a free download

Faster downloads? Get Download Accelerator Plus (DAP) free and increase your internet download speed considerably.

Security Information
Microsoft Security Essentials support inquiries or software troubleshooting are available only from its publisher/developer Microsoft Corp.. Although we constantly scan all the programs present on this website with a strong combined antivirus solution, for your improved security, we strongly advise you to check the downloaded files with a good antivirus and antispyware software.
Most Popular in Antivirus
274 / 1,379,569
Microsoft Security Essentials & ForeFront Client Security Definition Updates March 30, 2015
Protects your computer from any kinds of malware, virus, Trojans and spyware.
6,006 / 816,561
AVG Anti-Virus Definitions March 30, 2015
Latest AVG virus signatures
174 / 493,188
Avast Virus Definitions March 30, 2015
Latest avast! virus signatures
302 / 347,990
Kaspersky Anti-Virus Update March 30, 2015
Latest Kaspersky virus databases
100 / 240,983
McAfee Virus Definitions 7755
McAfee Virus Signatures
69 / 162,040
ESET NOD32 Antivirus 8.0.304.0
Good protection against threats
42 / 145,170
Win32/Sality Remover
Delete the Win32/Sality virus
70 / 121,360
Kaspersky Virus Removal Tool 30.3.2015
Virus scanner and detection software
68 / 105,740
Quick Heal Antivirus Plus 11.00 (
Anti-virus software with a proactive defense
20 / 92,868