USB used for memtest, no longer 100% after?

[Rydis]

are usbs used for memtest unable to be used again after? I have several USB between 8-32 gigs that I have used as a memtest boot stick, that after doing this, will only format back to 149 MB and I can't seem to get to full capacity again

 

[EarthDog]

I haven't had any issues...

 

[jmh547]

I would try using a partition software to see if the remaining space is unpartitioned.

 

[Mpegger]

Like jmh547, I believe you may be encountering a partition issue. Whatever method you are using to install Memtest to the USB stick, must be partitioning it at a reduced size. You could probably just reformat/partition it in Windows without the need for any other program.

 

[Rydis]

Like jmh547, I believe you may be encountering a partition issue. Whatever method you are using to install Memtest to the USB stick, must be partitioning it at a reduced size. You could probably just reformat/partition it in Windows without the need for any other program.

im using the auto installer that comes with memtest to make it a bootable drive. But all my sticks, after use, no longer format to the correct size, they are all limited to 149 MB through windows format.

I didn't check to look at partitions,

 

[ATMINSIDE]

Go to Disk Management in Windows, with one of the USB sticks plugged in.
Take a screenshot and post it here.

 

[Rydis]

Go to Disk Management in Windows, with one of the USB sticks plugged in.
Take a screenshot and post it here.

it does say the rest is unallocated..but it wont let me reallocate it. How can I do it?

 

[EarthDog]

Expand space I believe is the option...

 

[Rydis]

Expand space I believe is the option...

not a useable option. can only format, change letters, explore and properties. everything else is greyed out

deleting the first partition opens up the second. got it thanks

 

[wagex]

boot to another usb with gparted and do it from there or use partition magic from within windows. windows disk manager can be weird about expanding partitions sometimes

 

[Mpegger]

Most USB stick 32GiB and under would be Fat32 formatted. Windows Disk Manager can't expand that format (only NTFS afaik) , but as the op found, you can still remove all partitions and then use all available space for a new partition.