USB freezes computer

Howdy,
Bought some Sandisk Ultra USB 3.0 to use as installation for Truenas. When first plugged in they show up normally with Sandisk software. Using Rufus and balinaEtcher to flash the USB to install from it freezes the computer when installed from a boot. When put in while machine running the computer shows that I need to put the USB in. It seems to be seen by some settings and when I go to flash it, it only shows 12K space and then Windows fails to format message.
Now the ones I tried seem unusable, brand new.
Help if possibel

Lance1 said:

Try running chkdsk j: /f /x /r from a CMD Admin. Change "j" to the drive letter of the USB.

Hello Lanxw1
Wish I would have thought of that one myself.... On the bad one I have left, it shows nothing when install and trying chkdsk on the letters it was usually assigned gave no volume, Thanks

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NavyLCDR said:

To get the flash drive back to virgin, open a command prompt with admin privileges and run:

Code:

diskpart
list disk
select disk # <replace # with the actual number for the flash drive
clean <this will erase the disk selected above, make sure it is the flash drive!
exit
exit

I can help you more with Truenas install when I get home, but I have found that old fashion plain USB 2.0 drives work much better than USB 3.

When you try to boot the computer from a Truenas installation flash drive, make sure it is plugged into a black USB 2 port directly off the motherboard on the back of the computer.

@glennc,

Are you trying to install on a UEFI computer, or legacy BIOS?

Howdy NavyLCDR,
Ran diskpart shows disk 0-2 as online and sizes of existing ssd and 2 hardrives, Disk 2 shows asterisk under Dyn. Disk 3 shows no media 0B and disk, and Disk 4 shows online 14 GB with asterisk under Gpt. I ran the clean command on Disk 4 which popped me out to file explorer with a please insert disk into USB drive (F:). I unplugged it and reinserted it and now explorer shows USB Drive F:,, BUT still pops up the please insert disk error. Windows can't chkdsk and it seems dead Format command says unknown capacity FAT (default). BUT Open Devices and Printer Icon on taskbar shows an option to eject Sandisk 3.2Gen1
-USB Drive (F:).
Unless I did something wrong I was going BIOS. Oh and the USB drive sees and loads a USB backup environment media.
??

Also chkdsk f: now says not available for RAW file system!!!

Worked like a charm! It did assign the next higher drive letter to it! I can create and transfer files and it shows up upon insertion and lists for an eject. Does it matter that diskpart > disk list still shows a disk 3 no media or is that my CD Drive? I need to learn the command line.
Thanks, now I will try to get truenas on it again. {

glennc said:

Worked like a charm! It did assign the next higher drive letter to it! I can create and transfer files and it shows up upon insertion and lists for an eject. Does it matter that diskpart > disk list still shows a disk 3 no media or is that my CD Drive? I need to learn the command line.
Thanks, now I will try to get truenas on it again. {

Disk 3 is fine, as long as the drive is empty. It is your CD Drive. You might have a problem that disk 2 is a dynamic disk. If it is just a physical hard drive, it should be basic disk, not a dynamic disk. But that is whole another issue. Like I said in a late edit, I used Rufus to create the Truenas installation USB flash drive, none of the options could be changed, and the flash drive it created will boot in both UEFI and legacy BIOS modes on my computer.

Disk 2 is a dynamic disk because I had it mirrored. Deleted mirror to remove the 2nd drive and don't know enough to change it one way or the other. Can I convert it to Basic with Disk Manager or from the command line? Won't need it if I am thinking correctly as Truenas will take care of the drives and redundancy.
Going to give it another try now, fingers crossed.
Many thanks
As for ports, I only have one USB 2 on the old computer the rest are 1. Also for another unknown reason except my mistake, rufus is showing the partition scheme as Gpt, originally it showed MBR.

Yes, my Rufus said GPT as well and diskpart says the USB flash drive is GPT. That is really weird because it should be impossible to boot a GPT drive in legacy BIOS mode, yet the flash drive created by Rufus will boot in legacy mode. So I don't know if it somehow made an MBR available for legacy BIOS booting....

BTW, here's my Truenas system:
NavyLCDR Truenas Build!

I've since upgraded the CPU: