FWIW's, the error is being produced due to the MariaDB/MySQL Daemon having a file lock on a log file.
http://www.nirsoft.net/utils/opened_files_view.html
Is a good tool to verify this.
I believe I used:
http://sourceforge.net/projects/processhacker/
As well as finally stopping the daemon through "services" typed into the Windows search bar (click Windows type in "services" without the quotes, then press Enter).
After that, I was able to completely remove the repack. Again, FWIW.