When running e2fsck -y /dev/sdc1, I'm receiving the error:

e2fsck: Filesystem has unsupported feature(s) while trying to open /dev/sdb1


In my case, the file system of the external USB drive was ext4, reformatting it to ext3 eliminate the issue.

To view the current file system, do the following:

  • Mount the device
    mount /dev/sdc1 /media/usbdisk
  • Issue the command
    df -T

To re-format the partition to ext3 without needing to re-partition:

mkfs.ext3 -L MyLabel /dev/sdc1
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In affected computer, do the following:

  •  go to Start -> Run... -> type control keymgr.dll
  • Click Add
  • Enter your Server Name (ex: server.domailname.local)
  • Enter your domain\mailbox name (ex: domainname\username)
  • Enter your mailbox password
  • Click OK
  • Click Close
  • Launch Outlook, tick Remember Password when prompted, then close Outlook after login is complete
  • Launch Outlook again, tick Remember Password, close Outlook
  • Launch Outlook and it should be OK then



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