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Run TrueCrypt from a mapped network drive

Windows Vista doesn't have a problem running the TrueCrypt executable directly from a mapped network drive (in Traveler Mode), but Windows XP SP3 does. It gives the error, "The system cannot find the path specified" followed by, "Unable to connect to the TrueCrypt device driver. TrueCrypt cannot work if the device driver is not running. Please note that, due to a Windows issue, it may be necessary to log off or restart the system before the device driver can be loaded."

Logging out and restarting do not fix the problem, however. Oddly enough, XP has no problem running TrueCrypt directly from a USB drive, which is also assigned a drive letter. I'm guessing it has something to do with local versus network drives.

The only solution I found to this problem is to actually install TrueCrypt on the XP machine using TrueCrypt Setup and selecting Install. Then, run TrueCrypt locally. Once the TrueCrypt window opens, you can mount an encrypted file on the mapped network drive. In this way you can still share a single encrypted file among multiple machines.


Ben Moore said…
I have a very similar problem but it doesn't involve a mapped network drive. Instead, I can run TrueCrypt from a USB attached IDE drive ONE time. The second time I run TrueCrypt from the USB attached IDE drive, I get the error you describe that persists until I reboot. Once in this situation, I can run the exact same TrueCrypt bits from a USB flash drive and even mount the TrueCrypt volume from the USB attached IDE drive!
Ben Moore said…
What version of TrueCrypt are you using? I just installed v6 in Traveler Mode on my USB attached IDE drive, rebooted, and can't make it fail now.
Anonymous said…
I recently upgraded from 5.0 to 6.1a as well as from XP to Vista. I am having the same issue when running TrueCrypt a second time from my USB flash drive. I suspect a reboot will do it from other blogs i've read.
Peter Mork said…
I experienced the same problem Ben reported. I upgraded to the latest version of TrueCrypt Portable (v7.0a) and the problem is gone. I no longer need to reboot after dismounting an encrypted drive!

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