Is there any possibility that you're logged on to Windows with an account other than the administrator?
Try manually removing and then reinstalling the drivers for the hardware key.
Disconnect the key from the computer. Open the Windows Control Panel and select "
Uninstall a program." Pick the "
Hardlock device drivers" and click "
Uninstall." On the first page,
make sure to pick the "Custom" removal option. Click on "
Select All" and then "
Next" each time those buttons are shown, until the process is complete. When you have finished uninstalling the drivers, restart Windows.
Next, go to
https://www.datacad.com/update/update_hardlock.htm and click "Download Hardlock Device Drivers (4.88MB)" in the middle of the page. Save the installation file into a folder on your hard drive, such as My Documents, and then double click on it to install.
When that is finished, use the link below to download a copy of the file "hlvdd.dll."
ftp://dcadpub:DataCAD1@ftp.datacad.com/ ... /hlvdd.dllSave the "hlvdd.dll" file into the C:\Windows\SysWOW64\ folder. Windows may prevent you from saving directly to that location. If that happens, save it to a temporary folder first, such as C:\Temp\ and then copy and paste it into C:\Windows\SysWOW64\.
You may now connect the hardware key to the computer. Windows will display a message indicating that it has found new hardware and will install the drivers. When it says that the hardware is ready to use, shut down and restart the computer once again. When it is finished,
you should be able to run DataCAD.
Please let me know whether or not this solves the problem.