delete Xampp's mysql folder

[Pat Woolf]

In trying to start fresh, I have deleted everything in the c:Xampp folder EXCEPT MYSQL>DATA>ib_l ogfile0, ib_logfile1, ibdata1, mysql.err, pbxt-lock/
message says I cannot delte because it is being used elsewhere
I have searched Xampp, apatchefriends, my sql and deleted everything that produced. so far as I can tell, these 5 files and two folders are all that is left of an Xampp install.
How do I get rid of them so I can reinstall a fresh Xampp?

[johny10151981]

start task manager check what program is running, you might get little idea about who is using your files