MS7 can't start or report error under Win7/Vista/XP

Microsoft China Windows Live Customer Service website issued a notice yesterday, notifying Windows Live Messenger instant messaging tool that it can't start normally.

Microsoft's official website said that some users reported that Windows Live Messenger could not be started properly.

After investigation, the problem is caused by the failure of the user-installed Shield 2.0 to update the system files, causing the Messenger program to fail to start properly.

Users under XP may encounter the prompt "unknown software exception(0xC00000d)" when launching Live Messenger, while Vista and Windows 7 users may not be able to start it. program.

Users can use this method to fix this problem:

Method 1: Go to Microsoft's official website to download and run the relevant repair. Exe tool

Method 2: Users can manually delete the bl.dat file in the following path

Windows XP: C:\\Documents and Settings\\username\\Local Settings\\Application Data\\wlmkv\\ bl.Dat

Windows 7 or Windows Vista: C:\\Users\\username\\AppData\\Local\\wlmkv\\bl. Dat