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STEP 3: Click the Start button to start the service. STEP 2: Look for Windows Installer from the list. In the Search programs and files field, enter “ services.msc” then press.
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OPTION 2: Make Sure that the Windows Installer Service is Running If this did not resolve the problem, proceed to the next option. STEP 3: Restart your computer, then try installing Microsoft Security Essentials again. You may need to download and run a cleanup utility in order to completely remove these programs. NOTE: Some Internet security programs do not uninstall completely. STEP 2: In the list of programs installed, look for any third-party Internet security programs and click Uninstall. In the Search programs and files field, enter “appwiz.cpl” then press. OPTION 1: Remove Any Existing Security Programs NOTE: It is advised to print or bookmark this page since there will be a point where you will be required to restart your computer. To resolve this issue, follow the steps below: If you encounter problems installing Microsoft Security Essentials in your computer, it can be due to some other security programs running or you may be missing some prerequisites. Microsoft Security Essentials provide real-time protection by helping you guard your home or small business computers against viruses, spyware, and other malicious software.
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