I uninstalled MsE and reinstalled to hopefully solve a problem. Now it doesn't let me turn it on. I hit the "Activate" button, but she disappears for a while and still will not light.

I have win xp... .i get an error message and when I run a scan it shuts down before the end of the quick scan.  I uninstalled my MSE and reinstalled in an attempt to correct some of the problem.  now, when I pull up to my it says that it is not enabled... There is a button to turn it on, but it doesn't seem to work.  An update popped up, but it does not update as well.  Any ideas?

Hello

1. What is the error you get with MSE?

2. don't you make changes to the computer before this problem?

3. have you updated to Service Pack 3 installed? (Refer to this article: how to determine the Version of Windows XP in use: http://support.microsoft.com/kb/310104 )

4. What is the error you get when you try to install the update that popped up?

This problem may occur if there is a 3rd party software security installed or if the MOUSE is not installed correctly or due to an infection if the MSE files are corrupt.

Follow these methods.

Method 1.

If you have other anti-malware or security programs on your computer, try to uninstall in order to check if that helps. If there is no other program anti-malware on your computer or uninstalling it does not help then the problem another possibility is there was malicious software on your computer before installing MSE.

Method 2.

Windows Defender offline can help eliminate hard to find malicious and potentially unwanted programs using definitions that recognize the threats. Definitions are files that provide an encyclopedia of potential software threats. Armed with definition files, Windows Defender in offline mode can detect malicious and potentially unwanted software and then inform you of the risks.

What is Windows Defender Offline? : http://windows.microsoft.com/en-US/windows/what-is-windows-defender-offline

Note: There could be a loss of data while performing a mode offline scan using Windows Defender to remove viruses as appropriate.

Method 3.

It is possible MSE has not installed correctly. Go to control panel > Add/Remove programs and uninstall all the antimalware programs listed including Windows Defender if present and Microsoft Security Essentials. Once all of these programs are uninstalled, restart the computer and you should be able to properly install MSE.

You can download MSE from this link: http://www.microsoft.com/en-us/download/details.aspx?id=5201

Let us know if you need assistance with any Windows problem. We will be happy to help you.

Tags: Windows

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