Recently I had to move 200GB from one hard-drive to another.
It was imperative to make sure everything was copied successfully.
Using a binary comparison tool would take a really long time. So I only check the total file size of all files copied and the number of files.
I tried copying these 200GB files several times and never succeeded. I was too lazy or busy to investigate until today when I got really pissed off.
It comes out that the difference comes from thumbs.db files.
How to stop the creation of these files:
- Click Start
- Double-click Control Panel
- Double-click Folder Options
- Click on the View tab
- Check off the circle next to Do not cache thumbnails
- Click the Ok button