What to do if you can't start MSN under Win7

MSN can not start under the Win7 and error what to do?

MSN is our commonly used even chat tool, but recently because the update caused many Windows Live Messenger users can not start MSN, the official has explained that MSN can not start because the user installed Protection Shield 2.0 in the update system files failed. In different systems the failure conditions are also different.

XP users may experience "Application exception unknown software exception (0xc00000d)" When they start live Messenger, while Vista and WINDOWS7 system users may not be able to start the program.

MSN cannot start the error under Win7 can be resolved by using the following methods:

　　method One: go to Microsoft Official webpage to download and run the Repair.exe tool

　　method Two: users can manually delete the Bl.dat files in the following path

Windows xp:c:documents and Settings user name local settingsapplication datawlmkv bl. Dat

Windows 7 or Windows vista:c:users user name AppDataLocalwlmkvbl.Dat