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USB drive shrunk from 4GB to 1GB *Solved*


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I have a 4GB LG USB flash drive that I've had for about 3 years. I recently plugged it in and Windows showed that its maximum capacity was 1GB. I confirmed that the capacity was only 1GB by trying to transfer more that 1GB of files to it and it wouldn't let me. So I took a look in the partition manager and this is what I found.

 

post-63719-0-44766000-1306899850_thumb.png

 

The partition manager shows that the volume is only 950MB and there is 2.81GB of unallocated space. So I tried reformatting the drive using the quick and full format methods which didn't solve the problem. I would like to use the "Extend Volume" option, but it's grayed out and won't let me do it.

 

Any ideas?

Edited by malmsteenisgod

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Remove the volume so the entire thing is unallocated and create a new volume. $5 says the MFT got corrupted at some point and screwed up the partition size. :cheers:

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That's strange you can't extend it :-/, can you try formatting the unallocated one and maybe connect them?

 

It won't let me do that either. So I just installed Partition Wizard and deleted the volume. Then I created a new volume of what was supposed to be the full 4GB. Partition Wizard says that it's done and that it is about 4GB, but Windows still shows 1GB. I again confirmed that it is indeed only 1GB by trying to transfer more than 1GB of files onto it. Here's another picture of what it shows.

post-63719-0-01360600-1306907315_thumb.png

 

I then ran an error scan of the drive using Partition Wizard and it didn't detect any errors. So, I think I've lost all faith in this program.

Edited by malmsteenisgod

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Try right clicking on the disk on the left - you should have an option to delete the volume (when you right click on the partition it just gives you partition options). Removing the volume and creating a new one should fix it unless the drive itself is broken.

 

EDIT: I wouldn't use NTFS on a thumb drive - use either exFAT or FAT32.

Edited by Waco

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Try right clicking on the disk on the left - you should have an option to delete the volume (when you right click on the partition it just gives you partition options). Removing the volume and creating a new one should fix it unless the drive itself is broken.

 

EDIT: I wouldn't use NTFS on a thumb drive - use either exFAT or FAT32.

I use NTFS on my flashdrives with no problem but he doesn't need to run it since it's only a 4GB, mine are over 4GB so I need to run NTFS to be able to store files larger than 4GB

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I use NTFS on my flashdrives with no problem but he doesn't need to run it since it's only a 4GB, mine are over 4GB so I need to run NTFS to be able to store files larger than 4GB

exFAT allows for files larger than 4 GB and it's a lot harder to corrupt since it doesn't journal anything AFAIK. :cheers:

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exFAT allows for files larger than 4 GB and it's a lot harder to corrupt since it doesn't journal anything AFAIK. :cheers:

oh really now...I may have to reformat my drives then! I thought exFAT=FAT=FAT16 :yucky:

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IDK about your problem but i have a 2tb external drive that was partitioned and formatted with one partition for a mac and one for my pc, so 1 mac partitions and 1 windows partition. Disk manager returns the mac partition as un-format-able unallocated space.

Did you ever access it on a non windows computer?

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IDK about your problem but i have a 2tb external drive that was partitioned and formatted with one partition for a mac and one for my pc, so 1 mac partitions and 1 windows partition. Disk manager returns the mac partition as un-format-able unallocated space.

Did you ever access it on a non windows computer?

 

Actually I did use it to print some stuff from a Mac at my University a few times, which may be what caused it now that you bring that up.

 

But anyways I have solved the problem. I didn't quite understand how Partition Wizard worked at first. I had to restart my computer in order for this program to run in its own little OS without being in Windows. So once I did that it wiped the drive and reformatted it with the full 4GB in a single partition. I'm not sure why the Windows partitioner couldn't do this, but Partition Wizard could.

 

So, as I understand, I should probably format my flash drive into exFAT? What's the difference between using exFAT and FAT32?

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