Hi All,
Notebook -> Acer aspire switch 10E(x32-bit), windows 8.1
While trying to defragment thru System and security -> Storage spaces, I changed External HDD's status as "offline". I was not aware about its impact and behavior. Now, the HDD is not even displayed in Windows explorer home page, think it is changed to dynamic. but it is listed under Device Manager.
I tried to change its status thru same method System and security -> Storage spaces, but there, after clicking on "Change Setting", cursor loads for sometime but nothing really comes up. I have attached the screenshot below.
Not able to find any option to change the status or anything. Please help.
Thanks in advance 

Device Manager is showing drive in unallocated mode.
