Installing Microsoft Security Essentials
The first thing the program does is shows progress copying and extracting files. That should generally be very fast.
Then the Welcome screen shows up.
Validation may go very quick.
The screen will show validation was successful for a short time, and then proceeds to the next screen.
It may be beneficial to uncheck this box, so that a scan isn't likely to happen before there is a reasonable amount of time to be able to choose the selectable behaviors of automatic actions. (Otherwise, if the scan starts before that occurs, some automatic actions may be performed before they are configured.) It is recommended to simply uncheck this, and to start a scan later. That may be done manually.
“Finish” button is pressed, the initial installation phase is
complete. The program will then attempt to run the main “Microsoft
Security Essentials” program (
) with either a
command(-line parameter) of
/UpdateAndQuickScan” (if the
checkbox wasn't unchecked) or else
/Update”. (There is no
complaint/error message if that file was renamed before “Finish”
Once the main
“Microsoft Security Essentials” program ((
started, an icon that looks like a building with a flag over it will appear in
the “system tray”/“message notification area” near the
clock in the (usually lower-right) corner of the screen.. It will briefly be
red when the main program starts up.
Because of the
information provided by the installation process, once the main
“Microsoft Security Essentials” program ((
) is started
by the installer, an update process begins immediately. The red tray icon
will turn into a blue icon with a green arrow moving down.
For advanced users/researchers, here are some details of the unexpected:
“Cancel Update” button is pressed, then User Account Control will
check if this was intended (if User Account Control is on), and if so, the
program simply remains on the update tab (with the messages
“Virus & spyware definition status - ” “Out of
date”, and “Your computer isn't using the latest updates on
potential threats, which could put it at risk.”) The
“History” and “Settings” tabs remain greyed out, as
shown by screenshot. The program then goes to the
“Home” tab showing definitions are
“Out of date” with “History” and
“Settings” tabs seen greyed out, like if
is restarted. If an update attempt fails, the home tab can be returned to and then it shows an “Update” tab with “Connection failed” message when “History” and “Settings” tabs are greyed out.
If the Internet
access is down, a Microsoft Security Essentials update
error message will show. Then clicking the button by “Support
information” shows Microsoft Security Essentials
update error with support information, and clicking
“Help” tries to go to a
web page (about an update failing?). It then
goes to the update tab, with an “Update”
tab with “Connection failed” message when “History”
and “Settings” tabs are greyed out. One may see the
“Home” tab when a connection failed during
initial update. If the program quits, the program then goes to the “Home” tab showing definitions are “Out
of date” with “History” and “Settings” tabs seen
greyed out, like if
Although it is visible, the screen shown above may not show long enough for things to be easily readable or identified before MSE automatically advances to showing the updating.
After the initial
was started with the
-UpdateAndQuickScan parameter, which is what happens
if the checkbox to start a scan was not unchecked, then
“Microsoft Security Essentials” will start a scan. (This is
unusual, because after the program has been updated, the
-UpdateAndQuickScan parameter updates but,
contrary to what would be expected, does not follow through by performing a
scan.) The tray icon turns into a blue building with a circle, which
indicates that a scan is taking place.
After the initial update is performed (even if the initial scan isn't completed), the program may be considered fully installed. All of the settings of the program are fully operational and automatic actions should be able to function as expected. See the Configuring Microsoft Security Essentials section.
If a scan was performed, the program completes the installation by being on the “Home” tab with a message showing how many items were scanned”. Switching away from the “Home” tab and back will cause a different message to appear, instead of the sentences mentioning how many items and threats were scanned. Instead, the message will be “Microsoft Security Essentials is monitoring your computer and helping” “to protect it.”
If a scan wasn't performed, the program ends up on the “Update” tab.
At this point (if not earlier), the green building logo should be visible. This Update screen can easily be reached again by accessing the shortcut/context/“right-click” menu of that building icon and choosing Open, and then clicking on the Update tab.
When the computer
is restarted, the Microsoft Security Essentials executable
file may be started with the
-hide parameter so
that it starts without showing the main window (although the building icon