Yes Sonar X1 comes as 32 and 64 bit so will run fine on Windows 10,, I run Sonar 8.5 64 and I have Sonar x1 LE on a W 10 computer..I don't use it but you install the older version to get use of certain plug ins and instruments. So install Sonar X1 and then--
Upgrade,, even if just to Artist. You can use your registered copy of X1 to get a discount and right now they are offering a lifetime membership.
If your short on cash you can try Sonars new software and just pay monthly.
Sonar X1 was possibly the worst version being the first release of the X series.
They didn't mature untl X3e.