This error occurs because the “My Documents” folder points to a network location. This may have been done manually or be inherited through group policy that has Folder Redirection enabled

To check where My Documents points to click

• Start > Username
• Right click Documents and select Properties
• Click the location tab

If this is set to a network location change it to the local machine

• old location: \\server01\redirectedfolders\user\documents
  new location: c:\users\user\documents
• Click OK and answer no to moving documents to the new location
• Try to install Image Manager again