Unfortunately, the option to delete the partition is greyed out. I’m running as an admin on the machine as well, so I’m not sure why it won’t let me do it.

I had something similar happen but it was a flash drive I received from a company with a utility on it that created encrypted partitions. I wanted to use the whole flash drive also and get rid of the partition & utility. It took me quite a bit of research but I was finally able to remove the utility partition and get a full 2GB flash drive. Not sure if it will work on the 8GB model you have but I used a utility called ChipGenius that helped me through the process. The primary source for this application seems to be a Chinese website so you might consider using Google translate to read the content. This utility in combination with another utility it recommended permitted me to do a low level format of the USB key and now I have a full 2GB key. A good article about repairing/reflashing a USB flash drive process can be found here.

Could one not use something like GPartEd to convert the FAT16 partition to FAT32 and grow it?

i was able to fix a similar problem using diskpart commands i know this is an old question here but it’s one of the first results when i googled for the same problem .. so to those looking for help maybe this can also help them…..

run command promt
type diskpart
hit enter
type list disk
hit enter
find out number for your fdrive
type select disk X
hit enter
(X being the number for your fdrive)
type clean
hit enter
type create partition primary
hit enter

that’s it

Akamboj your fix worked for me so many thanks to you

Akamboj – Thanks! I had the same problem and your solution fixed it!

So hard to find simple solutions sometimes!

It worked for me!
Thank you very much!!!

Sunilkchopra, thank you!

hey man I had a problem like this one, I had an 8 GB Flash drive but I had only a couple hundred MB left, so I did this and I have my Memory back! Thanks man!

Thanks…a lot..very useful to me…

I downloaded the Lexar USB format tool but it is only giving me the option of Drive D to format and my USG Drive Letter is G. Any suggestions. I have been trying to fix this flash drive for three days already and of course I am ready to pull my hair out. Any suggestions would be greatly appreciated.

Laura

i was able to fix a similar problem using diskpart commands i know this is an old question here but it’s one of the first results when i googled for the same problem .. so to those looking for help maybe this can also help them…..

run command promt
type diskpart
hit enter
type list disk
hit enter
find out number for your fdrive
type select disk X
hit enter
(X being the number for your fdrive)
type clean
hit enter
type create partition primary
hit enter

that’s it

THESE STEPS WORK LIKE A CHARM, FOLLOW THEM & THANK KLEANER =]

thanks Kleaner Sdfsdfsdfsdfasdf that worked like a charm

Kleaner 10 pts. | DEC 2, 2009 5:43 AM (GMT)
i was able to fix a similar problem using diskpart commands i know this is an old question here but it’s one of the first results when i googled for the same problem .. so to those looking for help maybe this can also help them…..

run command promt
type diskpart
hit enter
type list disk
hit enter
find out number for your fdrive
type select disk X
hit enter
(X being the number for your fdrive)
type clean
hit enter
type create partition primary
hit enter

that’s it
THIS REALLY WORKS READ CAREFULLY AS IT SAYS TO TYPE SPECIFIC WORDS…

THANKS kLEANER

It worked just fine for me THANK YOU. My 8Gb Kingston had 6 Gigs unallocated and MyComputer/manage/diskmanager didn’t allowed to activate it.

Thanks man!! It worked. I had formatted my Transcend pen drive in a MAC, n its capacity reduced from 8GB to 200MB. Can u blv dat?… At first I thought it was Transcend with a Problem!!

Akamboj: Thank you , My problem solved with your post …thanks a lot

Akamboj, you are da man! Thanks so much!

I should just add that although I did receive an error while running that downloaded program, and it even seemed to have crashed, it still worked and I recovered the unallocated part of my flash drive. Go figure.

Thank you. This worked for me on my PNY 16GB USB drive that was mis-formatted because of the Dell diagnostic utility. Be sure that you mount (assign) the usb drive a drive letter in disk management if you cannot see it with the lexar utility tool.

Thank YOU!! I tried about every partition manager I could find to no avail. I’m so glad I found this forum. What a great tool! I am gonna keep it in my ‘must have’ apps folder! Thank you Akamboi!!

Kleaner 10 pts. | DEC 2, 2009 5:43 AM (GMT)

THIS WORKED PERFECTLY FOR ME . . . THANKS KLEANER

i was able to fix a similar problem using diskpart commands i know this is an old question here but it’s one of the first results when i googled for the same problem .. so to those looking for help maybe this can also help them…..

run command promt
type diskpart
hit enter
type list disk
hit enter
find out number for your fdrive
type select disk X
hit enter
(X being the number for your fdrive)
type clean
hit enter
type create partition primary
hit enter

that’s it

worked well, thank you

Akomboj, it’s work, thanks very much

thank u dude. it really worked with mine.

but guys what do i do ?? i am in linux and having the same problem

Thank you so much for this info. It worked like a charm!

this solution is magic. worked perfectly.
recovered my 8gig from 1gig
Thanks very forever

THANKS I GOT MY USB STORAGE AGAIN …

….thanks a lot!!!! ii works for my sony 8gb. now my flash drive get back to normal again.. haha LOL.

That’s right. Answer can be approved. Procedure was correct to take my 4GB Patriot Memory USB drive back with full capacity! Thank You, Guys!

Hi man , i know it’s like 3 years after you posted this but i had the same problem and i really like to post the solution i found after like 5 hours of searching , this is the solution : 

then format your disk as fat32 and every think will work