Educational license Creo Parametric 10.0.0.0 error (-21)

[MM_10910329]

I started having this issue today (my first time attempting to install creo). Since the first try I have uninstalled and deleted all license files then reinstalled Creo (using the same zip file I downloaded the first time).  Still getting the same issue.  The license I received yesterday results in an error message, the message is long but this seems to be the critical data:

 License Request Failed for Feature... (-21)

I am using the educational license fixed node (just followed the directions that I received when receiving the license). Any suggestions on how to get it up and running? Thank you

[VladimirN · Accepted solution]

Similar issue - "Creo parametric 10.0.0.0 license request failed error while launching the software": https://community.ptc.com/t5/PTC-Education-Forum/Creo-parametric-10-0-0-0-license-request-failed-error-while/td-p/896451

Quote: "This means that product code BK900908EDSTUDENTEDUNI belongs to Creo 9.0. To install Creo 10.0 please use https://apps.ptc.com/schools/references/install_creo10_unistudent_standard.pdf instructions. Do not forget to remove all license file from C:\ProgramData\PTC\Licensing directory before you start Creo 10.0 installation".