Hi Kevin,
Wow! It sounds like you did a really good job of messing your PC up without taking proper precautions on backing your stuff up!!
You need some guidance. We don't mind helping, but you should know without giving us hardware specs on your system such as the exact Model of your HP, it's hard for us to help you. If you don't know how to get these, please download the Free
SPECCY diagnostic from piriform.com and run it and take the resulting output text file and post it back here to your thread here so we can properly analyze it.
Next, you have several problems, the least of which is your not backing up your data from Windows or Ubuntu partitions to external media.
At this point, if your data is
NOT backed up,
I would stop what you are doing, and pull that hard drive out of your PC or laptop, and set it aside now and consider taking it to your local repair shop and having a licensed Tech attempt data recovery on which is going to cost you money. If that's not an option for you, I would say you have a very low chance of getting your Stuff back by yourself. Some of the things you have tried violate many well known principles of computer building, I will tell you a few of them.
1.) Doing a Dual-Boot OS on any PC or laptop is a high-risk procedure, and without proper backup or Image backup to external media, it's like being a Tight-Rope walker working 300 ft. above the ground without a net!!
(enough said).
2.) Windows has code in it in Track 0 of ever windows computer that insists on it being the primary partition; other OSes such as Linux, OS2, Unix, NetWare, etc. can be installed alongside it, but only after Windows is installed 1st!! Whatever forums you visited forgot to tell you that. Probably because they've never actually done it, only written about it. So,
Rule #1 of Dual-Boot PCs: install Windows (any version), and then install the secondary OS such as Ubuntu (Linux) in your case!
3.) You mentioned trying Ubuntu 16.04LTS;
that version does not seem to work with W10 at all!! I spent several weeks trying to get them to dual boot on a few of my laptops. No Go! Have reported it to Ubuntu but they have never gotten back to me with a fix, and our Linux guys here on WF haven't either. Finally, I was able to get Ubuntu 14.04LTS, the last version of Ubuntu working in dual-boot mode on my Acer AspireOne mini netbook!
This version is a couple of years old, and works fine. But the 16.04LTS version does not. I moved on, and resigned myself to not having that dual-boot configuration working. No one else here has it working either (that could have changed in the last few months) that I know about.
4.) Last thing you mentioned was reformatting all your drive partitions with FAT! WTH?? That hasn't been done on windows PCs since 1995!!
That's a 16-bit drive format, and today's CPU chips and OSes (Windows, Linux, etc.) all require a minimum of 32-bit or 64-bit. There are some 128-bit and 256-bit formats out there for business OSes such as Solaris. Not something I recommend for home users however.
5.) You HP machine doesn't appear to be very old; about 3 years or so. You have posted nothing about your hardware and whether or not you've tested it. Specifically, you need to test
ALL your RAM sticks, and especially your Hard Drive. You have a desktop PC and hard drives are only designed to run 3 years before failure. If you are the original owner of this machine and you haven't replaced the hard drive on it, it is quite likely that it is failing or has already failed, which could lead you to irretrievable data loss without sending it out for very very expensive Professional Data Recovery. To assist you with this; I've written an excellent article with the help of links being used by us WF volunteers to help you test your RAM and Hard Drive. Here it is:
Windows 10 - Unclickable Task Bar.
Start reading at
POST #6 under my listed username:
BIGBEARJEDI. This will get you going. If you get stuck, post back and ask us for help. It is step-by-step and we've had beginners figure out how to do and fix their own PCs.
Those things being said, it's no wonder you have problems. If you have read this far, and don't consider me an idiot, then I have some more advice for you. Consider purchasing a new hard drive for your PC, after having removed the messed up one as I suggested above. Most drives are now under
$100 unless you get massive space like 2TB-10TB drives used for making archived data backup for 1 or multiple computers. 1TB internal drives are
under $50 on ebay or Amazon. Install your W10 on their and perhaps Ubuntu 14.04LTS as I mentioned. Try for that dual-boot since we know that works for sure.
Last, is your hard drive. Take that to your local licensed Computer Pro, make sure they are
A+ certified or better and ask them for their license number. If they don't have it, forgot it, make any excuses at all--leave immediately and find another Tech or shop. Take in your drive tell them your story. It will cost you from
$35-$130 US or so. Local data recovery may get from
15%-60% of your data back; if the Tech is experienced which is another question you will need to ask them; specifically regarding data retrieval from a Windows-Linux dual-boot system. Only experts will be able to help you with this. If you are not satisfied with what they got back or they could retrieve nothing; you are left with the last resort option of sending out your Hard Drive to Professional Data Recovery. You can post back here to find out names and phone numbers. There are only 2 reliable companies in the US who do this. They typically can get 85%-98% recovery success in my experience. I've sent out several drives for Recovery over the years; even drives that appear dead and do not spin up. Last one I did in May of this year cost me
$550. So, that data on your drive has to be really really important! Right? Having done Data Recovery for 29 years now, this information is current and accurate. Ultimately it's your PC so you have to decide how important it is to get your stuff back and what you are willing to pay someone to get it back for you. That last recovery did get about 97% of my stuff back on a totally whacked drive however.
Final note, if you find any of this helpful, please put a "Like" on this post. Us volunteers don't get paid and can't under forum guidelines, so liking our post helps our rep here on the forum, and tells other forum users who have a similar problem that it was helpful to you, even if it didin't fix your problem it might have led you to a solution that worked.
Appreciate that.
We are here 24x7x365 to answer questions.
Best of luck,
<<<BIGBEARJEDI>>>