Windows 10 bug
The names of these folders start with tw, and end with .tmp. To find and delete these folders, copy the text below, and paste it into the Windows search box on the taskbar. Then click 'Best match', or the entry at the top. You may then see the files as in the attached image. You can then select all of them to delete.
C:\Windows\System32\config\systemprofile\AppData\Local