When there is any existing network connection such as Outlook, Dropdown, Communicator/Lync or any other network required software, if we connect Cisco VPN then we will get the whole Windows freeze then BSOD - Blue Screen of Death!
There is a solution for this problem -
1) Uninstall Cisco VPN
2) Download WinFix.exe and run it, once the WinFix complete will prompt Windows restart
3) Restart Windows
4) Download DNE Update, run it
5) Run installation of Cisco VPN
WinFix.exe and DNE Update can be downloaded from Cisco website at
How to fix DNE installation and other problem
https://www.citrix.com/go/lp/dne.html
