MICROSOFT SECURITY ESSENTIALSProtecting your computer is a process, not a program.

Microsoft Security Essentials• Microsoft Security Essentials grew out of Windows

Defender and Windows LiveCare; its primary advantage is its cloud-based security data sourcing.

• OSU adopted MSE as its main AV/AM software in summer 2010, replacing McAfee AV.

• Extension kept its McAfee license until February 2011.

McAfee License Ended• What does this mean? • ALL computers with McAfee on them need to be switched

to MSE.• All computers with McAfee should be assumed to be at

risk, since their definitions have (probably) failed since February.

Removing McAfee – Method 1• FIRST download MSE from

http://www.microsoft.com/security-essentials. Removing McAfee will leave your computer unprotected, and you want that period of time to be as short as possible.

Removing McAfee – Method 1• Go to Start>Control Panels>Add/Remove programs.

Removing McAfee – Method 1• Scroll down to the entry for McAfee and click on it. Click

the “remove” button.• Wait for the process to complete. This can take a little

while.• When it finishes, run the MSE installer you downloaded. • Accept the license agreement and run the validate option

to validate your copy of Windows. MSE will not install unless you do this.

Removing McAfee – Method 1• After validating, click the “Install” button. • When installation completes, click “Finish.” MSE will

update itself and run a quick scan. If the scan finds anything, contact your support technician as soon as possible.

Removing McAfee – Method 2(Preferred)• Go to http://support.dasnr.okstate.edu• Click on “Links and Downloads”• Scroll to the bottom and download the McAfee Removal

and MSE Install File (McAfeeSwitcher.exe)• Run the file and then reboot.• The file removes all versions of McAfee, and installs or

updates Chrome, Flash, Java, Adobe Reader, and MSE.

Using MSE• MSE shows as a small green or orange castle on your

task bar.• Green means everything’s fine, orange indicates an issue,

usually not an emergency.• Right-click the castle and choose “open” to view the

menu.

Using MSE

Using MSE

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Further Assistance

http://support.dasnr.okstate.edu/links-and-downloads-1

Support Personnel:

Scott Wilson scott.wilson@okstate.edu (405) 744-4414

Levi Arnold levi.arnold@okstate.edu (405) 744-7847

Paul Kjar paul.kjar@okstate.edu (405) 744-4390

http://support.dasnr.okstate.edu/contact-us