Hi, since updating to macos high sierra i cant access my thumb drive. I tried another thumb drive and still same. Please help me fix it


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Bro try to transfer all your data from your t.drive to another device. Then format your t.drv using macOS H.Sierra. Then copy back the data from your 'temporary storage' and then see whether the t.drive can be used. AFAIK, there is still some issues with compatibility of external devices running with High Sierra. I also just found an issue with my upgrading, and finally found that some apps do not go well with it. Need to wait until these apps have updates on their own to work woth high Sierra.

I formatted my thumb drive using macbook and I choose MSDOS FAT, it's working!!! but it is weird since i choose same format

Good that its working. Only thing is that msdos FAT32 file system have limitation which can only read files 4Gb and below. Meaning if you intend to save files below this max than you are ok. Anyways alls good and its working

I just reformat again and this time i choose exfat and it's working. I'm wondering why do we need to format only by using macOS. They need to fix high sierra quickly.

Read in their forums that these issues are being corrected and shall be provided in near future updates. As is, the reason they brought it out early was to cmpliment the ios11 which some of the HighSierra supports now. Those with sierra and ios11, live photos can't be read and/or edited for example. Even 3rd party apps also which are having compatibility issues are just providing updates. Those premium designing softwares also having issues and failed to work at all until the updates are made available.