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Runs on Microsoft Windows 7, Windows Vista, Windows XP and 2000. Including 32-bit & 64-bit versions. Download size: 3.4 MB

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How to Fix Invalid Drive Errors: Steps to Fixing Invalid Drive Errors on Your Computer


What Is an Invalid Drive Error?

When you’re attempting to install programs on your computer, you may get an Invalid Drive error when the program can’t be installed. The error will typically read as: Error XXXX.Invalid Drive: [Drive Letter]:\ — (Example: Error 1327.Invalid Drive: D:\).


What Causes an Invalid Drive Error?

This type of error can be caused for several reasons. If the hard disk your operating system has been installed on has been changed (drive C is most common) or if the drive letter of the DVD-ROM or CD-ROM has changed since a prior install or a program, the Invalid Drive error might occur. It might also occur if there’s a wrong value in the Data filed of a registry key.


How to Fix an Invalid Drive Error

There are couple options to fixing an Invalid Drive error, depending on what the root cause of the issue is.


Solution 1: Reassign the original letter to the operating system, DVD-ROM or CD-ROM drives.


  1. Select Start.
  2. Select Settings (skip this step if using Windows XP).
  3. Click on Control Panel.
  4. Double-click on Administrative Tools.
  5. Double-click on Computer Management.
  6. Select Disk Management.
  7. Right click on the operating system, DVD or CD-ROM drive.
  8. Select Change Drive Letter and Path.
  9. Select Edit.
  10. Change the drive letter back to the original drive letter (typically C).
  11. Click on OK.
  12. Click on Close.
  13. Try reinstalling the software.


Solution 2: Confirm the registry entries don’t have invalid drive letters.


  1. Back up your system registry. (Because you will be making changes to your computer’s registry, it’s critical you follow these steps exactly. The backup suggested here provides added protection in case something goes wrong).
  2. Click on Start.
  3. Then select Run.
  4. In the Run dialogue box, type regedit in the Open field.
  5. Click OK.
  6. Locate the registry key that reads the following in the Registry Editor: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders.
  7. Look at the drives in the right pane to determine if any of the drives in the Data column are not correct for the computer.
  8. If one is incorrect, right click on the entry and choose Modify.
  9. In the Value data field, type the right drive letter.
  10. Click on OK.
  11. Repeat steps 8 through 10 for each drive that’s incorrect in the Data value.
  12. Repeat steps 6 through 11 for the registry key that reads the following in the Registry Editor:

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell FoldersHKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders

    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders



    If neither of the above options work, you can try contacting the vendor of the program you’re trying to install to check if they’ve hard-coded a path for a drive that’s non-existent on your computer.


    One of these solutions should resolve an Invalid Drive error on your computer. Good luck!

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