Last update: 2012-09-26, 12:30

Microsoft
Security Essentials (MSE) offers award-winning protection against the
Internet intruders including viruses, trojans, worms and spyware. MSE is
built for individuals and small businesses, but it’s based on the same
technology that Microsoft uses to protect giant businesses (security
products like Microsoft Forefront, the Malicious Software Removal Tool,
and Windows Defender). Microsoft has a whole team watching for new
threats and coming up with ways to squash them. Microsoft Security
Essentials is efficient and compact. Scans and updates are scheduled to
run when the PC is idle and the software works in a way that your PC is
still snappy when you’re using it. All this makes Microsoft Security
Essentials friendly for all sorts of computers – your old PC, your new
PC, your laptop, as well as your little netbook.
Microsoft Security Essentials uses green, yellow and red color codes
to designate the security status of your PC and a color-coded icon in
the taskbar tells you at a glance if your attention is needed. It’s
simple – when you’re green, you’re good. However, if there’s a red or
yellow threat, MSE will alert you and recommend what to do (you can act
directly from the notification area without having to enter the
application).
Downloading and installing Microsoft Security Essentials is free
(Your PC must run genuine Windows to install Microsoft Security
Essentials) and easy. Once you have installed it, the software updates
automatically once a day. We’re constantly tracking new threats and we
keep your PC updated to help protect you. You don’t have to do anything.
Microsoft Security Essentials has received great recognition for the
protection: the VB100 award from Virus Bulletin Ltd., Checkmark
Certification from West Coast Labs, and certification from the ICSA
Labs.
• Real-time protection
Real-time protection means addressing potential threats before they
become problems. Alerts notify you when spyware, viruses, or other
malicious software attempt to run or install on your PC, and suspicious
files and programs are prevented from opening.
• System scanning
Microsoft Security Essentials offers complete system scanning
capabilities with both scheduled and on-demand scanning options to
provide an extra level of confidence. Scheduled scans are turned on by
default and configured to run weekly at 2 a.m. when the system is likely
idle. There are three scanning options:
* Quick scan. On by default, a quick scan rapidly checks the areas
malware is most likely to infect, including programs running in memory,
system files, and the registry.
* Full scan. A full scan checks all files on the PC, the registry, and all currently running programs.
* Custom scan. A custom scan allows you to scan only the areas you select.
You can choose when you want a scheduled scan to run, view the scan
results before cleaning, or run a scan on demand. If the PC isn’t turned
on when the scan is scheduled to run, Microsoft Security Essentials
will start the scan at the first opportunity once the PC is awake and
idle.
• System cleaning
When Microsoft Security Essentials determines a possible threat on your
PC, alerts notify you of the threat. Threats are categorized as Severe,
High, Medium, or Low, and you can choose whether to ignore, quarantine
or remove the item from the system.
* Quarantine. Microsoft Security Essentials blocks less severe threats
and moves them to a quarantined queue where you can elect to restore or
permanently delete them. By placing an item in quarantine, you can test
the effect of the item’s removal before deleting it from the system.
* Remove. This action permanently deletes the item from the system.
* Allow. This action stops Microsoft Security Essentials from detecting
the item in future scans by adding it to the Allowed Items list. You can
remove items from the Allowed Items list at any time.
• Windows Firewall integration
Having an active firewall is part of securing your PC. During setup,
Microsoft Security Essentials scans the PC to determine if a firewall is
active on the PC. If no firewall protection is present, you’ll be given
the option to turn on Windows Firewall.
• Dynamic signature service
Protection needs to be up-to-date to be effective. Dynamic signature is a
way to check whether a suspicious program is bad or not. Before a
suspicious program runs, Microsoft Security Essentials pretends to run
it to determine what it’s going to do. This gives programs special
signatures that are checked against our database of good and bad
programs. Programs are watched even after they are approved to make sure
they don’t do anything potentially harmful like make unexpected network
connections, modify core parts of the operating system, or download
malicious content.
• Rootkit protection
Rootkits are particularly difficult types of malware to protect against,
and Microsoft Security Essentials includes a number of new and improved
technologies to address rootkits and other aggressive threats.
* The kernal is at the heart of your PC’s operating system. Microsoft
Security Essentials monitors it to see if there are any attacks or
harmful modifications.
* Rootkits use stealthy methods to hide themselves and Microsoft
Security Essentials has the latest anti-stealth technology to uncover
them. For example, direct file system parsing helps find and remove
malicious programs and drivers that rootkits try to sneak in.
• Protection against real threats, not good software
Microsoft Security Essentials helps block bad software. We keep a list
of the most popular websites and downloads on the Internet and use it to
test our antimalware definitions and updates before they get to you.
This helps us make sure that the protection we offer really keeps your
PC safe, and not blocked.
MSE is available as standalone 32-bit and 64-bit downloads for Windows XP, Windows Vista, and Windows 7.
Homepage –
http://windows.microsoft.com/en-US/windows/products/security-essentials
Size: 10.2 MB
Download Microsoft Security Essentials 4.1 for Windows XP/ Vista/ 7 32-bit
Download Microsoft Security Essentials 4.1 for Windows XP/ Vista/ 7 64-bit
Download Microsoft Security Essentials in your Language
Download Latest Definitions 32-bit
Download Latest Definitions 64-bit
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