Try each of the following steps in order until the issue is resolved:
     
    • Verify there is enough free disk space on the hard drive
    • Edit the registry: Add the String Value NoShowDiskSpaceWarning with a value -1 under the following registry key:
         HKEY_LOCAL_MACHINE\Software\Blackbaud\REINI_#\General.


      Add this key to all of the REINI_# keys, where # is a value between 1 and 10, beginning with 1.