Unlicensed Products and it’s causes

Unlicensed Office:
This is a common issue that appears with the office 365 as that is a subscription based program. If the user miss to renew the same on time, the products may turn unlicensed. Here, we have other set of issues that gives the same message,

For instance, if your software has multiple versions in the same computer, there will be a license conflict and shows this error.

Windows not activated:
Windows activation issues popup with the mismatch of system time-zone and corrupted BIOS if it was an OEM device.