I don't think you need to be worry! I had the same once with an older SATA HDD and after done a low level formatting and re-install of windows 8 those were gone. That just seems to be some "soft"-error's.
how does computer managemant look like? - shouldn't do any problems, but next time just use 'clean' within diskpart. you also could run diskpart to list the partitions if there is something within the mbr.
Clean normally is OK, but! Clean didn't format Track Zero in which those unallocated space is normally located. Even formatting just deletes only the first letter of the content stored there. Only Low Level formatting is clearing and cleaning completely. Over the years I learned that a Low Level formatting is sometimes on order or even a revitalizing of the full HDD! Most error on HDD's are "Soft" Errors, more than 80% from my own experiences. Those soft error could be cleared using the appropriate tools/apps. That also what the Professional's using for Data Recovery. A small part of my business is Data Recovery from damaged storage media's for which we charge in case of success only.
Sorry, you may right in many thing but regarding Low Level formatting and Revitalizing of new standard HDD's! I didn't talk about SSD's! And just from the part of logic: Why such apps would be updated and even a few new were developed if such work isn't supported or useless? In fact there is a very good reason for the developer for to do that!
I ran into this problem using a sata I cable on a sata II system a long time ago. It caused a bunch of errors, so I tried to use some sort of disk recovery boot cd. That program errored out as I hadn't fixed the problem, but when I finally figured it all out it had that 0 / 0 issue that you have in your pic. I suspect that you have done something similar with some sort of hard drive tool or format utility. The good news is that the hard drive will work just fine. I haven't had any problems since on my drive since I used sata II or III cables, and I have never had any slowness or error issues.
How I ever could expect that your answer would be polite? That's something which seem to just impossible for you or it's maybe against your Ego?! You also no able to understand written words at it seems to be! I didn't talked about the manufacturing process instead about the process used in their laboratories, as example for Data Recovery of customers HDD's after they had problem and needed the Data! And who talked about SpinRite and ShieldUp etc. etc? It didn't were me in any means, it was just YOU who was bring that up! If you didn't learn to be polite, please don't wonder if you didn't get the answer you're looking for. And you should also learn to stay to the rules, not of one of this forum only, also about the existing Copyright Law! Many of the pictures you're posted, which includes the one above, I hardly believe that you have an permit to republish them. First clear the dirt in front your door before looking to one of others! Or simplified siad, just be polite. Have a nice day!
First at all, Low Level formatting and Revitalizing are two different procedures which working completely different! But how I could expect that you know that? You just shown again that you didn't have any knowledge about those! Secondly, I would give confidential information only to those people I know in person and also know I could trust them! And YOU for sure nobody of those persons. To give a proof would nothing else mean than give data of Customers, also a Member from MDL, etc. out in public without prior permission. I'm not like you! And I'm not offended in any way because you're a nobody for me who couldn't offend me.
Unfortunately it's you who want to "see" something what you didn't understand because of lack of knowledge! Bye.
WoW thanks for all the info. I was expecting a simple answer of y it causes to have 2 extra unallocated space with zero (0mb). But it's all good.. Learn quite a few both here and link. thx all