In recent years it has become common for Microsoft to release trial or preview versions of its big-name products.
The trial version of Office 365 is only meant to be used for 30 days.
After this time you are expected to by a license or stop using the software.
In practice, Office does not become unusable, but instead enters a reduced functionality mode.
Open up an Explorer window and navigate to one of the following folders.
bang out:
OSPPREARM.EXE
Press Enter, and youre done.
Thats all there is to it.
