How do I delete a complete database?

[Roy Dennis]

The most reliable way is to partition your internal hard drive which is what I did, I created a partition and gave it a volume letter that matched my external drive E.
Then it was just a matter of copying all the relevant files from the external into the new partition, then when I start Hoster it runs exactly as before, no rebuilding paths or anything plus I can easily sync all the files to my second computer that does still run off an external.
In my case it was a brand new computer with a 1TB drive but it would only allow me to shrink the C/ drive to about 50% leaving the other 50% for my E drive but that was still plenty for my music collection. If you need more room than it will allow you would probably need to use some partitioning software.

You can move all music from your external drive to your C/drive but I'm not sure if The singers database will still work afterwards.

If that's the way you want to go then my first tip is use the Tools/Backup/Restore feature first presuming your version supports that.
Copy all your music files from the external to the C/drive, if they are in a parent folder place them with that parent folder, that way there's more chance your singers database will be able to find them.

Now start Hoster go to the Build database dialog. The bottom section is a list of paths to the music files, you need to remove all these first, you should be able to do that by selecting them all with the CTRL+Left click function then Remove Folder button.
When that list is empty I would rebuild database which will build an empty database so clearing out all traces of the existing. If after that you see a message box stating you have no songs with two options, select Not Now and stay with the rebuild dialog.
Now use the Add Folder or if all your files are in a parent folder use the AddFolder/Subfolders button and brows to the new location of the files. it will rebuild the song database as each folder loads.

If you do have files missing I can only think you must have overlooked a folder or subfolder when adding them to the list.