Delete Files

1) Cmd

Delete File

del /f C:\TestFile.txt

Delete Folder

rmdir /s /q C:\TestFolder

2) Powershell

Remove File

Remove-Item -Path C:\TestFile.txt -Force -Verbose

Remove Folder

Remove-Item -Recurse -Path C:\TestFolder -Force -Verbose

Remove Contents of Folder (Recursive)

Get-ChildItem -Recurse -Path C:\TestFolder | Remove-Item -Force -Verbose

3) SDelete (Sysinternals)

Delete File securely

SDelete.exe -accepteula -nobanner -p 3 C:\TestFile.ext

Delete folder recursivley

SDelete.exe -accepteula -nobanner -p 3 -s C:\TestFolder