A friend of mine asked me to format his 120 GB LG flash disk (that’s what Windows Disk Management told me) as he cannot do it with his laptop. I tried and found out that I cannot do it either. exFat is the “original” file system, I tried to format with FAT, FAT32, and NTFS – to no avail.
It looks like the volume is “mounted”. What could have been the problem?