Hi James,
Thanks for posting your query to Microsoft forum. I will certainly help you with this.
Which files you want to delete?
Here is the procedure:
1.Turn on your computer. Browse to the file you wish to delete.
2.Right click the file.Click "Delete".Alternatively,left click the file and press the "Delete" button on your keyboard.You cannot currently be using the file in question.Close the file if you need to delete it.
3.Click "Yes".This will confirm the deletion by sending it to the Recycle bin.If you wish to delete the file permanently, you need to hold down "Shift" and press "Delete" when you have the file selected.
This will permanently delete the file without first sending it to the recycle bin.
You can also Delete files using Disk Cleanup.
Let us know if you need further assistance. We will be glad to help you further.