Hello,

In order fix your issue you need to remove the software which you have in your computer and re-install MSN client. To perform a clean uninstall MSN software please check the steps mentioned below:

Windows 7

Step One:  Exit all programs that are running.

Step Two:  Click Start, then click Control Panel.

Step Three:  In Control Panel, click Programs.

Step Four:  Click Uninstall a program.

Step Five:  Select MSN Explorer and click Uninstall.

Step Six:  Click MSN Internet Software, MSN, or MSN Internet Access, then click Uninstall.

Last Step:  If you are prompted to confirm that you want to remove the program, click OK.

Windows XP

Step One:  Exit all programs that are running.

Step Two:  Click Start, then click Control Panel.

Step Three:  Click Add or Remove Programs.

Step Four:  Click Add/Remove Windows Components.

Step Five:  Clear the MSN Explorer check box, click Next, then click Finish.

Step Six:  Click Change or Remove Programs, click MSN Internet Software, MSN, or MSN Internet Access, then click Remove.

Last Step:  If you are prompted to confirm that you want to remove the program, click OK.

And to install MSN software follow these steps:

Please follow the steps listed below:

1. Open a Web Browser or Internet Explorer window by clicking on the blue “e” icon on the Desktop.
2.  In the Internet Explorer (Browser) window, type http://membercenter.msn.com/ in the address bar and press Enter.
3.  Once the page loads, click on the Sign In button and enter your MSN e-mail address and password.
4.  Click Download MSN Software on the right-hand side.
5.  Click Download and install the latest MSN software.
6.  Click the Install Now button.
7.  Click Run in the File Download box. This will initiate the download of MSN’s Installation Wizard which may take about 2 to 5 minutes. You may be prompted to click Run again.
8.  On the next window, choose "Yes, I'm currently connected to the Internet." 
9.  Enter your primary "MSN e-mail address" and passwords in the field provided and click next.
10.  The next page after will prompt you to accept the MSN service agreement.  To accept and continue with the installation, type your name in the blank field exactly as it appears, then select "I Accept."
11.  In the Installation option page, select "Typical" and click on Next. (If you want to pick & choose components choose Custom)
12.  It will display a list of components that are being installed.  The rest of the download and installation should take from 30-45 minutes. It depends on your computer and connection speed. Click on Finish once it appears on the screen.
13.  The MSN welcome screen will show up and you can sign-in to MSN.

Sincerely,

Mubarak