Harddrive filling up because lightroom

[Zacature]

My harddrive is filling up because i'm taking my image straight from lightroom to photoshop back to lightroom and i'm wondering where the files are located so I can delete. They're not only saved on lightroom now but also to my harddrive but I cannot find the files.

[Jim Wilde]

If you have not changed the location for locally stored originals (in Lightroom's Preferences>Local Storage tab), the files will be located in the default location which is buried in the depths of the AppData>Local>Adobe>Lightroom CC>Data folder (you should find a sub-folder called "Originals" in there). If you're having space problems on the system drive, you might consider specifying a different location for the local copy of the originals on a separate drive. If you do that, the contents of the current default location should automatically be moved to the new location.