When I delete temporary internet files and clear the history are these files removed from the hard drive ?

Get a privacy software designed to do this, then when your spouse discovers it they will know you have something to hide.

ccleaner is amazingly quick CCleaner ========= google ccleaner and installation it. at the same time as it installs in basic terms untick the bins as some you dont want. run the purifier in domicile windows/applications yet dont tick the bottom 11 bins interior the domicile windows Tab. run the registry purifier to boot, at the same time as it asks to back up the registry , enable it to do it, then sparkling the registry. also ccleaner will uninstall classes that you've gotten difficulty with in upload/get rid of, or there's a report lacking. in basic terms ensure that you do tick the single software and not in any respect the entire computing device to delete.

after you clear the files you need to defrag -

PS - for forensics (like police) unles you are running a disk wipe - multiple times whic means you will lose EVERYTHING - you will not get the drive clean - i suggest you stay away from it if you dont want people to know your looking at it!!!!