1. Take note of the last file name of the process creating the error that ends in 'DLL.'
2. Click the Windows desktop 'Start' button. Type 'command' (without quotes) into the 'Search' text box. The DOS box will open. Type 'services:msc' (without quotes) into the DOS box. Press the 'Enter' key.

3. Choose the DLL process from the first step and right-click the service. Select the 'Stop' button.
4. Type 'regedit' into the DOS box to run the Microsoft registry editor. Go to the Rundll registry key by typing the following into the 'Search' field box: 'Microsoft\Windows\CurrentVersion\Run'
5. Select the key that appears, and ensure that the value connected to the key ends with the same DLL name as in Step 1. Click the value and select 'Delete' if it matches.
6. Reboot your computer system and the 'Rundll' error will be fixed.