You probably don't need the
.ini files, but some Mac programs do use "thumbs.db" (like some photo organizing programs), so you should just move those to a temporary folder while testing out your programs.
WARNING You will not be able to retrieve your files if you do the following. BACK UP YOUR DATA!
To remove stubborn files, you'll need an administrator account and password. Using
Terminal, issue this command:
sudo rm -rf /path/to/filename
Hit
Return. It will ask you for an admin password; type it in, and hit
Return.
If you do not know what the correct path to the file is, just type up to +rm -rf+ then drag the file or folder onto the Terminal window. Mac OS will fill the path for you.