short file name

[mmargotta]

I open the Autocad 2017 full version and I get an error message: Error 1325 mmargotta is not a valid short file name.

Any help??

[pendean]

Read this from Autodesk https://knowledge.autodesk.com/support/autocad/troubleshooting/caas/sfdcarticles/sfdcarticles/AutoCA...