If you mean 0xD is the return code (that is, a decimal 13), then you can simply look up the error code in TurboActivate.h:
/* MessageId: TA_E_EXPIRED Message code (in Hex): 0xD Message code (in Decimal): 13
MessageText:
The activation has expired or the system time has been tampered with. Ensure your time, timezone, and date settings are correct.*/#define TA_E_EXPIRED ((HRESULT)0x0000000DL)
They should fix:
- Their timezone.
- Their date (month, day, year).
- Their time.
- And then restart their computer.
Then tell them not to screw around with the time anymore. There's no legitimate reason to do it other than to try to trick software into giving them more trial days.