Logical vs primary & Basic vs dynamic

[basha11]

I've 1tb Internal HDD.
first i've 4 primary partitions then i shrink 50GB from one drive then i got warning of converting into dynamic.I proceeded, my hdd converts to dynamic from basic.
I again converted it into Basic using some third party software, then i observe that 3 partitions (including shrinked one) are PRIMARY & remaining two are LOGICAL.
I converted the remaining 2 logical as primary(which contains data, i think primary is good than logical.. so) by making other two as logical. Here is the pic...

I want to convert all drives to primary. Is it possible???
Logical is good or Primary is good??
containing some primary & some logical drives may harm my hdd in any aspects???

 

[Ijack]

You can only have 4 Primary Partitions on an MBR-partitioned disk. If you want more then you need to create an Extended Partition and create Logical Drives within it (which is your current situation).

The only disadvantage of a Logical Drive is that you cannot boot Windows from it (true of earlier versions of Windows - I'm not sure what the situation of current versions is); otherwise they are, to all intents and purposes, identical to Primary Partitions. Leave well enough alone.

None of this applies to GPT-partitioned disks, but you can only boot from them if you use UEFI rather than BIOS.

 

[basha11]

You can only have 4 Primary Partitions on an MBR-partitioned disk. If you want more then you need to create an Extended Partition and create Logical Drives within it (which is your current situation).

The only disadvantage of a Logical Drive is that you cannot boot Windows from it (true of earlier versions of Windows - I'm not sure what the situation of current versions is); otherwise they are, to all intents and purposes, identical to Primary Partitions. Leave well enough alone.

None of this applies to GPT-partitioned disks, but you can only boot from them if you use UEFI rather than BIOS.

containing some primary & some logical drives may harm my hdd in any aspects???
in the picture C & D are win 8 & 7 resp. where as B drive is shrinked from C drive.
Is it ok to leave disk management,
or i needs to convert E & F as Logical (since they contain only data, no OS. I mean they'l never use for booting)
and B & C to Primary(since D has win 7 & B is shrinked from C which contains win 8)

Thanks for reply...

 

[Ijack]

If Windows 8 and Windows 7 are both booting then change nothing. This would mean that the boot files are on the Primary Partition even though the OS itself is installed on the Logical Drive. This will not harm your hard disk in any way; attempting to convert the partitions may result in data loss.

I assume, as you are playing about with partitions in this way, that you have tested backups of all important data? You should never emabark upon this sort of process without having the means to recover from a mistake.