I have a 2TB hard drive and I have 4 partitions:
3 partitions of ~600GB each one (D,E,F) and 1 partition of ~200GB (C)
The problem is that my Windows partition (on C drive) is located between my drives E and F,
something like this: 
Is there any problem if my Windows partition is not located at the start of the hard drive?
The best place to install and allocate your operational system is at the beginning of the disk, I mean, on the most external phisical area of the disk. I already explained a similar question before but I will also post a part of it here in attempt to answer your question:
The fist 0-10% area of your hard disk corresponds to the external area of the disk, which gives the read speed a boost because the linear speed of this area is higher compared to the internal area of your disk(the last 90-100% of your disk for example). This gives the impression that the performance of your hard disk is decreasing over the first to the last disk sectors(it actually is, as you can see on the first picture), as all SSDs are based on random access memories, all the usable "area" of your SSD have the same speed and accessing times, which corresponds to a linear performance over the entire disk. This also explains why operational systems usually use the first "area" and the first disk sections of the hard disks... For example, Windows will boot faster and make disk I/Os better than it would be if it was intalled on the last sectors.
