The APACER Recovery Tool worked! Beware...if it does work, you WILL LOSE EVERYTHING on the drive.
I used EaseUS Data Recovery Pro on the unreadable thumb drive to recovery all the data on it. Yep...it was actually UNREADABLE and EaseUS recovered EVERYTHING. I had to buy an EaseUS license right there and then to restore the data but it was worth it. I tried...Puran, Recuva, Final Recovery (old version), Wise, and FreeUndelete (and something else) but nothing came close to the results I got with EaseUS. EaseUS will recover from corrupt partitions whereas the other programs work better with drives that have readable partitions. Essentially, they all will recover a deleted file on a hard drive with an intact and functioning file system. EaseUS recovers files from the worst media conditions and scenarios.
By the way, the active link to the APACER software is linked below as the previous link was not valid as of July 2018.
APACER got rid of the write-only attributes on my Kingston Drive but it wiped the drive entirely. Nothing else worked. The Diskpart command didn't work nor did the Registry DWORD entry and neither did the HP Format Utility. The APACER Tool did it.
Ok, so here's my back story. The Kingston Drive is the all metal drive that looks like a keychain with a hole where you would put the keyring through. It's 8GB and USB 2.0. I bought it from a reputable eBay seller and I ran h2testw on it. It checked out as genuine. It was working fine one night until I ran Stablebit Scanner on it. Stablebit reported 4 bad sectors right off the bat. I couldn't get Stablebit to stop the surface scan on the drive at 83% (which tool 18 hours) so I just rebooted before it was finished scanning.
After a reboot, the drive was bricked and write-protected. I had something of value on the drive but Windows just kept asking to format the partition but I couldn't because of the write-protection. I used EaseUS Data Recovery and it mounted the USB drive and recovered all the data on the drive. Seriously...that program is awesome. I'm still impressed that it was even able to read the drives partition, let alone the files which I knew were still there because Stablebit is non-destructive.
So, I don't know exactly what happened and at what point it actually became write-protected but this is my story. Hopefully this will be useful. So, the take away from this is to attempt data recovery first...even if the drive appears empty or unreadable such that Windows is prompting you to format the drive, because the data IS there...it's just that the partition table is somehow corrupt. I used EaseUS Data Recovery Pro but you can use whatever you want.
Again, the APACER link above no longer works. Here is a working link as of July 2018 from Softpedia:
http://www.softpedia.com/get/System/System-Miscellaneous/Apacer-USB-Flash-Drive-Repair-Tool.shtml
My opinion, about the drive...I think it was defective. The drive was 3 years old and never really seen many write cycles. So, it was essentially newish. I guess if I had written onto it more often, I would have seen signs of failure. To be honest. This whole ordeal was more of an experiment than anything because the data I thought I was going to lose was already replaced but I was determined to find a solution to the issue of restoring the drive and the data on it. I just didn't want to give up on it.
Ok, so technically, the drive is back to its original state...functioning, readable, and all original data back on it. It's now ready for the garbage after I smash it with a hammer though. I'm not trusting that thing!
Tomorrow, I'm going to a brick and mortar store to get genuine thumb drives to replace two that I bought on eBay, which work fine and passed all tests, but this was a wake up call to buying portable media on eBay. In fact...don't buy any portable storage media on eBay unless you know the seller very well. It seems like 95% of all the portable storage media on eBay is counterfeit.
Good luck and God Bless.