I upgraded our ZfD 6.5 sp1 server to Zfd 6.5 sp2, it worked fine ( at least
as I saw).

Now I tried upgrade it to ZfD 7. Did several times. Failed. Got
installation not completed and the follwing install.log:

Pre-install steps completed successfully
RM Server components NOT installed on ZENLAB
Error: There was an error installing ZENworks Desktop Management on ZENLAB.
Error: An error occured during file copy or configuration. See above for
more details and be sure that no ZENworks Desktop Management files are open
or locked.

Does some one have any suggestion?