Delete Files
del /f /s /q C:\Users\dell\AppData\Local\Temp\*.*
Delete the folder
rd /s /q C:\Users\dell\AppData\Local\Temp\A
Delete files and folders
del /f /s /q C:\Users\dell\AppData\Local\Temp\*.*
cd C:\Users\dell\AppData\Local\Temp
rd /s /q C:\Users\dell\AppData\Local\Temp