Are you in need of uninstalling Microsoft Security Essentials to fix some problems? Are you looking for an effective solution to completely uninstall it and thoroughly delete all of its files out of your PC? No worry! This page provides detailed instructions on how to completely uninstall Microsoft Security Essentials.
Possible problems when you uninstall Microsoft Security Essentials
* Microsoft Security Essentials is not listed in Programs and Features.
* You do not have sufficient access to uninstall Microsoft Security Essentials.
* A file required for this uninstallation to complete could not be run.
* An error has occurred. Not all of the files were successfully uninstalled.
* Another process that is using the file stops Microsoft Security Essentials being uninstalled.
* Files and folders of Microsoft Security Essentials can be found in the hard disk after the uninstallation.
Microsoft Security Essentials cannot be uninstalled due to many other problems. An incomplete uninstallation of Microsoft Security Essentials may also cause many problems. So, it's really important to completely uninstall Microsoft Security Essentials and remove all of its files.
How to Uninstall Microsoft Security Essentials Completley?
Method 1: Uninstall Microsoft Security Essentials via Programs and Features.
When a new piece of program is installed on your system, that program is added to the list in Programs and Features. When you want to uninstall the program, you can go to the Programs and Features to uninstall it. So when you want to uninstall Microsoft Security Essentials, the first solution is to uninstall it via Programs and Features.
a. Open Programs and Features.
Windows Vista and Windows 7
Click Start, type uninstall a program in the Search programs and files box and then click the result.
Windows 8, Windows 8.1 and Windows 10
Open WinX menu by holding Windows and X keys together, and then click Programs and Features.
b. Look for Microsoft Security Essentials in the list, click on it and then click Uninstall to initiate the uninstallation.
Method 2: Uninstall Microsoft Security Essentials with its uninstaller.exe.
Most of computer programs have an executable file named uninst000.exe or uninstall.exe or something along these lines. You can find this files in the installation folder of Microsoft Security Essentials.
a. Go to the installation folder of Microsoft Security Essentials.
b. Find uninstall.exe or unins000.exe.
c. Double click on its uninstaller and follow the wizard to uninstall Microsoft Security Essentials.
Method 3: Uninstall Microsoft Security Essentials via System Restore.
System Restore is a utility which comes with Windows operating systems and helps computer users restore the system to a previous state and remove programs interfering with the operation of the computer. If you have created a system restore point prior to installing a program, then you can use System Restore to restore your system and completely eradicate the unwanted programs like Microsoft Security Essentials. You should backup your personal files and data before doing a System Restore.
a. Close all files and programs that are open.
b. On the desktop, right click Computer and select Properties. The system window will display.
c. On the left side of the System window, click System protection. The System Properties window will display.
d. Click System Restore and the System Restore window will display.
e. Select Choose a different restore point and click Next.
f. Select a date and time from the list and then click Next. You should know that all programs and drivers installed after the selected date and time may not work properly and may need to be re-installed.
g. Click Finish when the "Confirm your restore point" window appears.
h. Click Yes to confirm again.
Method 4: Uninstall Microsoft Security Essentials with Antivirus.
Nowadays, computer malware appear like common computer applications but they are much more difficult to remove from the computer. Such malware get into the computer with the help of Trojans and spyware. Other computer malware like adware programs or potentially unwanted programs are also very difficult to remove. They usually get installed on your system by bundling with freeware software like video recording, games or PDF convertors. They can easily bypass the detection of the antivirus programs on your system. If you cannot remove Microsoft Security Essentials like other programs, then it's worth checking whether it's a malware or not. Click and download this malware detect tool for a free scan.
Method 5: Reinstall Microsoft Security Essentials to Uninstall.
When the file required to uninstall Microsoft Security Essentials is corrupted or missing, it will not be able to uninstall the program. In such circumstance, reinstalling Microsoft Security Essentials may do the trick. Run the installer either in the original disk or the download file to reinstall the program again. Sometimes, the installer may allow you to repair or uninstall the program as well.
Method 6: Use the Uninstall Command Displayed in the Registry.
When a program is installed on the computer, Windows will save its settings and information in the registry, including the uninstall command to uninstall the program. You can try this method to uninstall Microsoft Security Essentials. Please carefully edit the registry, because any mistake there may make your system crash.
a. Hold Windows and R keys to open the Run command, type in regedit in the box and click OK.
b. Navigate the following registry key and find the one of Microsoft Security Essentials:
c. Double click on the UninstallString value, and copy its Value Data.
d. Hold Windows and R keys to open the Run command, paste the Value Data in the box and click OK.
e. Follow the wizard to uninstall Microsoft Security Essentials.
Method 7: Uninstall Microsoft Security Essentials with Third-party Uninstaller.
The manual uninstallation of Microsoft Security Essentials requires computer know-how and patience to accomplish. And no one can promise the manual uninstallation will completely uninstall Microsoft Security Essentials and remove all of its files. And an incomplete uninstallation will many useless and invalid items in the registry and affect your computer performance in a bad way. Too many useless files also occupy the free space of your hard disk and slow down your PC speed. So, it's recommended that you uninstall Microsoft Security Essentials with a trusted third-party uninstaller which can scan your system, identify all files of Microsoft Security Essentials and completely remove them. Download this powerful third-party uninstaller below.