Existe algum problema se a minha partição do Windows não estiver localizada no início do disco rígido? O melhor lugar para instalar e alocar seu sistema operacional é no começo do disco, quer dizer, na área física mais externa do disco. Eu já expliquei uma questão semelhante antes, mas também vou postar uma parte dela aqui na tentativa de responder a sua pergunta:
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.
