Repairing Invalid Drive Error 1327

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Error 1327 “Invalid Drive” is an installation error that occurs when the drive used to install the program is invalid. This problem occurs primarily with Microsoft Office installations, but can also occur with many other applications.

In most cases, this particular error occurs because the installation program attempts to perform the operation in an unassigned network location. In this case, you can quickly resolve the problem by mapping the location of the network that is not configured.

We have focused on MS Office in this article, but corrections are not limited to Office. Depending on your level of knowledge, you should be able to apply the same approach to almost all requests that return this error.

Office installations tend to force installation on drives that may not exist. In this case, you can use a SUBST command to redirect to a correct drive, or you can manually change the location of LocalCacheDrive.

Remove the drive letter with the command prompt

The command you are about to run allows you to connect and disconnect drive letters to and from a virtual location. Disconnecting a drive letter should allow you to install your program without generating an error message. So here’s what you need to do:

  • Go to “Find”, type cmd and open the command prompt
  • At the command prompt, type the following line and press Enter
  • subst /P (driver letter)
  • Close the command prompt and try to install your program.

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Troubleshoot Registry Errors

The system registry may erroneously indicate a temporary disk.

  • Back up your registry.
  • Go to Start > Search > and then enter Regedit.
  • Navigate to the next folder : HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders
  • In the right pane, look for entries that list the drive letter referenced in the error message.
  • Change the value of these entries to point to drive C:\, and verify that the folder path referenced in the key value exists.
  • Repeat the same steps for the next key: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders

Create a New Local Administrator Account.

Log on to the computer with a local account and install the application(s).

  • Log in to a new local administrator account.
  • Try installing Acrobat again.

Disconnect the Network Drive

  • Click Start > Programs > Windows Explorer.
  • In Windows Explorer, click Tools, and then click Disconnect Network Drive.
  • Select the network drive where the shell folder is located and click OK.
  • On the Tools menu, click Map Network Drive.
  • Clear the Reconnect to Connection check box and enter the path to the shell folder. Click OK.
  • Restart Windows.
  • Install the application(s).

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