Error code 22: Case-sensitive drives not supported

[defaultn2h05gwmqsn2]

Hi I have received this message when installing photoshop - Error code 22: Case-sensitive drives not supported.

I have had photoshop before and never got this message so unsure why. I am unsure what to do to get around it.

[Test Screen Name]

This is a setting when your system was set up. The system must be changed. This will wipe the disk of everything and delete all of your files, photos etc. - not a little thing. There is no work around.