Getting past the window: "Your 30 days trial period has ended"

I’m wondering how I can make the driver’s software work past the window: “Your 30 days trial period has ended”?

The window reads:
WD Sync V6.1.038
WD Sync is currently provided as a free fully featured 30 days trial version.
-It gives an option to buy or activate and then it reads- Your 30 days trial period has ended.

I read on a previous answer the WD Sync software execute file might be installed onto another hard drive (for instance the internal hard drive of the computer system), Then it suggested: the WD Sync software must remain on and run from the Passport USB drive.

I have uninstalled and installed the DW software several times but the problem persists.

I’m wondering how I can make the drive work properly???

Thi is a model WD1600UO17-004 with 150 or 160GB.

Sergio