I have Windows 10 Pro, Version 1151, OS Build 10586.36. Everything was working fine until last week when the newest update to Windows 10 got installed. Then I became unable to access SL - the client "hangs" during "Initializing VPS" and I have to stop the client with the Task Manager (it says "not responding"). I have tried with a total new install (delete everything and re-run the installer) of both the latest Firestorm release (which I was using before) and LL's viewer - both clients stop at the same point during startup. Yes, I have seen the entry in Firestorm's Wiki about this problem, but following their advice did not work. Nor did a "clean install" work. On Microsoft's support pages, I found some entries from 2012 regarding a similar problem with Windows 7. So I suspect this is a fairly new problem with this update to Win10. Any suggestions? Thanks!