I have an Acer laptop which is partitioned; I'm not sure if this is something
to do with the factory install or if another technician did this to my mate’s
laptop.

I rebuilt the C: partition from factory install assuming this would clear
both out and merge them to one. This is not the case. C: is now built and
working fine and all sweet.

Ideally I need to delete the other partition all together without any effect
on the C: I do not want to do a factory install as this may get rid of the C:
again as it gave me no option.

If I cannot do that, need to safely delete all the files on this other drive
and then reduce the size of this and move the storage over to the C: drive.

What is the best way to do this? Get rid of the drive or reduce the size of
this. Please provide as detailed instructions as possible.

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Thanks for your help!