External Hardisk error 'e:\ is not accessible'

Here's what you asked for.
What should I choose when it says 'initialize disk' ?
(My HD is the one showing unalocated)

Go with Partition Wizard.

Select/Right click on the unallocated drive, Click on Create, ( give a partition label, create as Primary, file system NTFS, give a drive letter > OK. Apply changes.)



( If by chance it does not take a drive letter, then Right click, Change Letter,give a drive letter >OK and then APPLY.)