While operating Windows 7, users can face the windows 7 office 365 activation issues, and cases where office 365 through a University of Minnesota subscription is getting installed easier but users are not able to activate it, and even after trying the various troubleshooting methods, users claims that we're having trouble activating office, then take a glance at the possible solutions given below:

Solution: To solve the Microsoft office 365 activation error, users must try removing the license files from the previous Office installations on personal devices. 

The steps to perform on Windows to Remove 365 License Files: 

• Users would need to open the command prompt as Administrator:
• Then users must type “CMD” into the Windows Search and right-click on it.
• Then users must also tap on the Run As Administrator option
• The next step would be to click on the OK button.
• Users would be asked to enter commands in the command window such
• cd C:\Program Files (x86)\Microsoft Office\Office16     
•  cscript ospp.vbs /dstatus
• It would be advisable for users to look for outputs such as:
  • ERROR CODE: 0xC004FC07
  • ERROR DESCRIPTION: It would be that the validity period has expired of the “Software Licensing Service”.