Summarize the following:
Programs on your computer use files that are in the Temp folders, so you won't be able to delete some temporary files if they're being used by programs. Click the multicolored Windows logo in the bottom-left corner of the screen. It's at the bottom of the Start window. Doing so will search your computer for the Windows Explorer app. It's the folder-shaped option at the top of the Start window. You'll find this tab in the top-left side of the window. A drop-down menu will appear. It's near the middle of the drop-down menu. This prompts a new window to appear. This option is at the top of the window. It's in the middle of the page. If this option is already checked, your computer is displaying hidden files. Doing so ensures that you can access and open the Temp folder for your apps and Windows itself.

Summary:
Close every open program that you can. Open Start . Click the text box. Type in windows explorer. Click  Windows Explorer. Click Organize. Click Folder and search options. Click the View tab. Check the "Show hidden files, folders, and drives" circle. Click Apply, then click OK.