“An unexpected error occurred” – when open properties of network connection

This problem happend in most cases becouse of a invalid registry entry (usualy after a mallware/trojan). So there is 2 steps to rezolve it: Click Start, and then click Run. In the Open box, type regsvr32 %systemroot%\system32\netshell.dll, and then click OK. In the RegSvr32 dialog box, click OK. Now try to open properties of a [...]