Delete token.dat & data.dat & cache.dat from C:\Windows\System32\spp\store & then try for it... If still failed go for last option of "Refresh your PC""
Code: cscript "%ProgramFiles%\Microsoft Office\Office15\OSPP.VBS" /inpkey:<You visio Key> cscript "%ProgramFiles%\Microsoft Office\Office15\OSPP.VBS" /act If office x86 installed on windows x64 cscript "%ProgramFiles(x86)%\Microsoft Office\Office15\OSPP.VBS" /inpkey:<You visio Key> cscript "%ProgramFiles(x86)%\Microsoft Office\Office15\OSPP.VBS" /act
Tried everything but I always get: ERROR CODE: 0xC004F074 ERROR DESCRIPTION: The Software Licensing Service reported that the product could not be activated. No Key Management Service (KMS) could be contacted. Please see the Application Event Log for additional information. To view the activation event history run: cscript ospp.vbs /dhistorykms Tried with KMSMicro 3.10 and published external servers.
Why did they patch slmgr.vbs to show XXXXX then? Maybe the key is in Google already. I'm patching slmgr.vbs back and see what it shows.