Dear All Good day
i have Lync server 2010 and runing Good
yasterday some users cann't open Lync Client and give us this error Massege
microsoft lync 2010 cannot start. the product license may be expired because you are using a pre-release or evaluation copy of the program, or the product key information may have been modified in your windows registry . please uninstall and then reinstall lync.
but another users runing Good
i'm try to unistall lync Client and install again but same problem
and Try to Install New server lync 2010 but same problem
please help me for resolve this problem
Khaled Eldosuky
Senior System Engineer
