Choose Your Language: International
Hello Guest Login Here or

Microsoft Security Essentials

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

Microsoft Security Essentials - No cost, no hassle security software for your PC Microsoft Security Essentials is a free security application that offers reliable, basic protection for your computer, against a wide range of threats and flawless integration with Windows operating systems....more

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 PC? Get PCSpeedUP and increase your computer speed considerably.

Security Information
Microsoft Security Essentials support is 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
3,824 / 1,478,465
Microsoft Security Essentials & ForeFront Client Security Definition Updates March 1, 2017
Protects your computer from any kinds of malware, virus, Trojans and spyware.
10,894 / 1,187,126
Avast Virus Definitions March 1, 2017
Latest avast! virus signatures
1,638 / 740,641
AVG Anti-Virus Definitions March 1, 2017
Latest AVG virus signatures
520 / 502,354
Kaspersky Anti-Virus Update March 1, 2017
Latest Kaspersky virus databases
942 / 260,581
McAfee Virus Definitions 8453
McAfee Virus Signatures
111 / 165,353
ESET NOD32 Antivirus 10.0.390.0
Good protection against threats
247 / 150,967
Win32/Sality Remover
Delete the Win32/Sality virus
322 / 130,026
Kaspersky Virus Removal Tool March 1, 2017
Virus scanner and detection software
431 / 114,735
Quick Heal Antivirus Plus 11.00 (
Anti-virus software with a proactive defense
92 / 95,299