Lync Chat Default Save in C disk, does not support the modification, the following method to modify the directory:
The default chat record is guaranteed to exist:
C:\Users\ User name \appdata\local\microsoft\communicator
So use the soft connection method to change it to other directory, below take the administrator account under Windows7 for example.
1, close Lync, move directory to other disk
Move "C:\Users\Administrator\AppData\Local\Microsoft\Communicator" E:\bak\Communicator
2. Establish soft connection
Mklink/j "C:\Users\Administrator\AppData\Local\Microsoft\Communicator" E:\bak\Communicator
If you are an XP user, you need to download junction, using the following command
Junction "C:\Users\Administrator\AppData\Local\Microsoft\Communicator" E:\bak\Communicator
3, start Lync, you can view the records are all in, reinstall the system to establish soft links can be, no longer afraid of the reload system chat record lost.