Where are temporary files located on Windows 10? I want to delete them all.

Here is a complete list of folders where Windows 10 stores temporary files. You should review them one by one before deleting files in those folders:

C:\Users\<userid>\AppData\Local\Temp
C:\Users\<userid>\AppData\Roaming\Microsoft\Windows\Cookies
C:\Users\<userid>\Recent
C:\Users\<userid>\Favorites
C:\Users\<userid>\Cookies
C:\Users\<userid>\AppData\Roaming\Microsoft\Windows\Cookies
C:\Windows\Downloaded Program Files
C:\Users\<userid\AppData\Local\Microsoft\Windows\Temporary Internet Files

C:\Users\<userid>\AppData\Local\Microsoft\Windows
   \Temporary Internet Files\Content.IE5
   \Temporary Internet Files\Content.Outlook
   \Temporary Internet Files\Content.MSO
   \Temporary Internet Files\Content.Word
   \Temporary Internet Files\Virtualized\C
C:\Users\<userid>\AppData\Local
C:\Users\<userid>\AppData\LocalLow
C:\Users\<userid>\AppData\Roaming
Recycle Bin

⇒ Showing Hidden Files and Folders on Windows 10

⇐ Managing Temporary Files on Windows 10

⇑ Managing Temporary Files on Windows 10

⇑⇑ Windows 10 Tutorials