Request to reset HostID for PSIM student license after formatting Windows

Question

Hello, I have a student license for PSIM 26.1 (Altair License Server 2026.0). I formatted my PC and can no longer deactivate the old installation. Activation fails with: “Error activating license: This license was already activated using different HostIDs.”

Please reset/deactivate the previous activation so I can reactivate on this PC. My Altair One account email is: ahmed.baklouti@enim.u-monastir.tn. I can send the activation key privately if needed.

I have urgent university work that depends on PSIM, so I would really appreciate a quick reply. Thank you.

Ankita_v · Accepted Answer

Hi,

Your previous license key activation is now deactivated in Altair one, you can now reactivate the student license with the same license key.

Deactivation and reactivation feature is only if a computer breaks down or reformatted and is only allowed a few times per user preprogrammed into the system.

You can deactivate the license from one machine and reactivate in another by yourself if you have access to both machines as per –

https://community.altair.com/discussion/34280/altair-student-edition-deactivate-from-one-computer-to-activate-in-another-in-the-rare-case-a-computer-is-lost-or-malfunctional#latest

Thanks