Defrag vs Defrag Freespace (understanding problem)

Hi there,

Since 1h I searched for an answer, but don't find the right way.

I defraged my 1TB (~200GB freespace) HDD, for a long long while. Now I try to defrag freespace (whole files) and it will takes again a

long time. Why?

I defraged the HDD some minutes a go. Is the defrag freespace process not included in the normal defrag? Why?

It's an understanding problem. When a tool defrag the HDD, it's not necessary to defrag the free space?

What's the perfect procedure?

Normal Defrag > Defrag Free Space (whole files)?

Just Defrag Free Space?

I can't sleep, when I don't unterstand how something works.

Thanks for a constructive response.

Well, for starters, defrag freespace is flawed right now. It tends to create more fragmentation. If you have already done a SLOW regular defrag, just leave it as is. Do you still have many gaps on the drive map? A screenshot might come in handy.