Solution for installing MSN cannot be started after installing Kingsoft Protection Shield

  
Method 1: Download and run the repair.exe tool (Download now
)

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

* 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
Method 3: Uninstall the Jinshan Protection Shield.

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