Hi there,
depending where you have tagged your presets (Cubase MediaBay or HALion MediaBay) you have to back up the specific user presets and DB files.
If you have tagged you presets in HALion you have to back up this locations:
“drive”:\Users"username"\Documents\VST3 Presets
for all User Presets.
“drive”:\Users"username"\AppData\Roaming\Steinberg\HALion 4_64 (or HALion 4_32 for 32 Bit systems)
That’s where the MediaBay data base files (.db) are placed and where all changes of the factory presets tagging are stored.
If you back up these files and replace them after you have reinstalled Cubase or HALion everything should be fine.
But if you have tagged your presets in the Cubase MediaBay you should back up all the files in the documents folders as well as the complete DB folder (drive:\Users\username\AppData\Roaming\Steinberg).
Please let me know if this is what you were asking for.