how to format usb hdd in fat32 format

if you ask google about How big a fat32 partition can be? the answer is

Well, as some of you will know, FAT/FAT32 can actually handle up to 16 TB hard drives and up to 2 TB are supported in most operating systems. Microsoft has set a 32 GB partition size limit for the FAT/FAT32 file system to promote NTFS

luckily the freeware open source world may help you with some executable like this one

porte USB della docking station lenovo che smettono di funzionare

se le vostre porte USB della docking station lenovo smettono di funzionare potete provare questo rimedio (che non vi obbliga nemmeno a fare un reboot)

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Re: T420 - USB ports stop working after undocking and re-docking

‎11-26-2013 09:17 AM

To "Fix" this (meaning I don't have root cause but agree it seems 
to only occur when you've recently undocked), open Device Manager, 
Expand out Universal Serial Bus controllers, and then disable and 
re-enable the first listed Generic USB Hub (Port_#0001.Hub_#0002). 

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articolo trovato sul forum lenovo btw: la domanda era per un T420 ma la soluzione proposta è andata bene anche a me con un x230