Eraser Forum

I am a newbie so sorry if this is way off base...

So I am transferring some files from hard drive to a USB drive. Then I want to erase the files on my hard driver.

I do delete from hard drive. Then I go to recycle bin and do eraser. I also go to my c: and run eraser. I believe this will prevent anyone from
a) recovering the data...
b) from finding out that i actually transferred data to USB drive...'

I am pretty sure about (a). Not so sure about (b).

thanks