Installer Information – Error 1327. Invalid Drive: <>

When installing a program in Windows, you can get the following error:

Installer Information

Error 1327. Invalid Drive: <<Drive>>

This is typically followed by:

Fatal Error

Installation ended prematurely because of an error.

This is caused by an invalid entry in the registry, there is a fix and a workaround available for this. To fix error 1327, update the following registry keys to point to a hard drive location that actually exists:

  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders
  • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders

Once this is done, try installing the program again. You shouldn’t get the Invalid drive error again, but if you continue to get error 1327, try the following workaround:

Before installing the erroring application, run the following in the command prompt:

subst <<erroneous drive letter>>: c:\

For example, if you get the F:\ drive as the invalid drive in the error 1327, and C:\ is a valid hard drive to install programs to, type the following:

subst f: c:\

This should fix the error while you install the software, but as soon as you reboot, error 1327 may occur for other installations.

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One thought on “Installer Information – Error 1327. Invalid Drive: <>

  1. The simple and quick resolutions to repair error 1327 are outlined below:

    1. Enter the valid path of My Documents in your registry
    2. Make required changes
    3. Restore the original drive letter
    4. Temporarily map a folder to the drive letter
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