"Drive letter already used."

When trying to connect to a drive, the user gets an error message: “Netrdrive : Drive letter already used.” This is happening to several employees in our company that are working remotely.

  • Happens no matter which drive letter we select, including when we try “auto”
  • “Mount on boot” is UNCHECKED
  • Connection was just fine previously, but suddenly starts having this issue.
  • Uninstalling Netdrive, restarting, and re-installing Netdrive fixes the issue for a few days, then it comes back
  • Latest Netdrive updates are installed.
  • Tried the command “net use * /delete” in an elevated command prompt, did not help

Any help with this would be greatly appreciated. We are losing a lot of productivity due to users having this issue.


Dear tech-9f36,

Thank you for using NetDrive.

After setting the log level to VERBOSE, please reproduce the problem and send us the debug log file :

There is no login related credential information in the log files.

Sorry for the inconvenience it may caused.


Thank you for your reply. For the moment, the issue has disappeared since we uninstalled and reinstalled; however, this issue frequently returns. I will do those steps the next time we have the issue.

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