Thanks for the reply.
I hope Cakewalk make easier way to save user's setting data.
Kev999//
I'm sorry if my Eng is awkward

.
Of course not.
If there is a file for user setting data, I'll copy it to other HDD first, then copy it back to the folder where Sonar X2 is reinstalled.
I use desktop PC and copy whole files(maybe 80gb?

) in the C:\ to other HDD before formatting C:\ for safety.