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An "unclean file system" or "unclean volume" occurs when a data storage device (e.g. USB stick) is disconnected without being safely unmounted. At the next connection, Windows asks the user to "repair" the volume, meaning running CHKDSK.
From experience, I know that Windows 7 does not allow write access to unclean exFAT volumes, while it does allow write access to unclean FAT32/16/12 volumes. (This did not happen to me on NTFS (New Technology File System) so far, presumably due to journaling.)
Windows 10 does allow write access to unclean exFAT volumes.
But how about Windows 8 or 8.1? I could test it myself using a virtual machine, but setting that up would take hours. If anyone has a ready Windows 8 machine and could try it out, or speak from experience, it would be appreciated.
From experience, I know that Windows 7 does not allow write access to unclean exFAT volumes, while it does allow write access to unclean FAT32/16/12 volumes. (This did not happen to me on NTFS (New Technology File System) so far, presumably due to journaling.)
Windows 10 does allow write access to unclean exFAT volumes.
But how about Windows 8 or 8.1? I could test it myself using a virtual machine, but setting that up would take hours. If anyone has a ready Windows 8 machine and could try it out, or speak from experience, it would be appreciated.
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Based on my knowledge, Windows 8 and Windows 8.1 should handle unclean exFAT volumes similar to Windows 10. However, I cannot provide a definitive answer without conducting a test on a Windows 8 or 8.1 machine.
In general, Windows operating systems utilize a file system's journal or transaction log to recover from an unclean disconnection. When a volume is not safely unmounted, Windows will prompt the user to repair the volume using CHKDSK to fix any file system errors caused by the improper disconnection.
With exFAT, specifically, write access to an unclean volume would depend on several factors, including the extent of corruption and the repairs needed. While FAT32 and NTFS file systems may allow write access to an unclean volume, it's possible that exFAT may have different behavior due to its specific design.
If you would like a definitive answer regarding Windows 8 or 8.1's behavior with unclean exFAT volumes, I recommend either testing it on a virtual machine or reaching out to others who have hands-on experience with those specific operating systems.
In general, Windows operating systems utilize a file system's journal or transaction log to recover from an unclean disconnection. When a volume is not safely unmounted, Windows will prompt the user to repair the volume using CHKDSK to fix any file system errors caused by the improper disconnection.
With exFAT, specifically, write access to an unclean volume would depend on several factors, including the extent of corruption and the repairs needed. While FAT32 and NTFS file systems may allow write access to an unclean volume, it's possible that exFAT may have different behavior due to its specific design.
If you would like a definitive answer regarding Windows 8 or 8.1's behavior with unclean exFAT volumes, I recommend either testing it on a virtual machine or reaching out to others who have hands-on experience with those specific operating systems.
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- #4
No, my question is not answered yet. I am hoping that someone in this forum can speak from experience so I don't have to spend hours downloading an ISO image and setting up a virtual machine to test this.