the 64 bit systems do not have a ospp.vbs file
the path for the office in the 64 bit folder is different as well
"c:\Program Files\Microsoft Office15\
a number of files are in the subfolders of this directory which begin with OSPP
what is the correct ospp file to edit for the key change?
I hit this issue as well, use the Program Files (x86) directory:
cd "\Program Files (x86)\Microsoft Office\Office15"
Then you can run the cscript ospp.vbs options as follows:
C:\Program Files (x86)\Microsoft Office\Office15>cscript ospp.vbs /dstatus
Microsoft (R) Windows Script Host Version 5.8
Copyright (C) Microsoft Corporation. All rights reserved.
---Processing--------------------------
SKU ID: cd256150-a898-441f-aac0-9f8f33390e45
LICENSE NAME: Office 15, OfficeHomeBusinessR_Retail edition
LICENSE DESCRIPTION: Office 15, RETAIL channel
BETA EXPIRATION: 1/01/1601
LICENSE STATUS: ---OOB_GRACE---
ERROR CODE: 0x4004F00C
ERROR DESCRIPTION: The Software Licensing Service reported that the application
is running within the valid grace period.
REMAINING GRACE: 27 days (38881 minute(s) before expiring)
Last 5 characters of installed product key: XXXXX
---Exiting-----------------------------
Then update the Key (note I have put XXXX in instead of showing my actual key):
C:\Program Files (x86)\Microsoft Office\Office15>cscript ospp.vbs /inpkey:XXXXX-
XXXXX-XXXXX-XXXXX-XXXXX
Microsoft (R) Windows Script Host Version 5.8
Copyright (C) Microsoft Corporation. All rights reserved.
---Processing--------------------------
<Product key installation successful>
---Exiting-----------------------------
Hope that helps. I had to do this after I cloned a fresh system before activating Office. Didn't have some of the "change key" options others have mentioned.