Today I decided to look into Windows 10 Technical Preview without safety net and run it on my main work machine. No real issues so far, except connecting to our corporate network via Cisco AnyConnect (version 3.1.04059).
Failed to initialize connection subsystem
This can easily be resolved by running the VPN client in Windows 8 Compatibility Mode. Just edit the shortcut properties and set compatibility mode. Then restart the client and try again.
If you still run into issues try the following registry trick you might had to do in Windows 8 as well:
- Open Registry Editor (Start > Run > Regedit)
- Navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\vpnva
- Change the value of the “DisplayName” key by removing the garbled characters before the name “Cisco…”
Hope this helps!