Hello,
I am using solidworks 2015 for my school for quite some time.
Now yesterday i reinstalled windows 10 and today i installed solidworks via solidworks.com/sek and now it says my serial is wrong while it is exactly the same.
How can this serial be wrong if i used solidworks normally two days ago.
Berend
2 possibilities.
First, SW2015 is not officially recognized to run on Win 10 unless it is SP5.
Secondly - before you reinstalled Windows, did you deactivate the SW license? If not, it is possible that the program is still looking for the machine with the older operating system.