one answer is that 2009 will run under windows 10. i ran 2008 until a while ago when i upgraded to the complete new program and all RealTracks.

if you backed up the installation, presumably you have all the styles you had. not sure if 2009 had much in the way of RealTracks. maybe RealDrums 1-3 if i remember correctly.

if PG have your records maybe you could upgrade to 2020 reasonably cheaply. it knocks spots off earlier versions and it would use all your existing styles.

then if you like the new version wait for the 2021 sale and get the lot like a large percentage of us that upgraded have done.