1. Reboot the computer. Press 'F8' at the boot screen and wait for the advanced boot options to load.
2. Load the 'Safe mode with Networking' option.

3. Navigate to the DLL Error website and download the mcshield.dll file. Save it to your desktop and unzip the file.
4. Press the Windows key, and open the 'My Computer' or 'Computer' folder.
5. Click on the 'C' drive, then 'Windows', and last 'System32.'
6. Drag the mcshield.dll from the desktop to the System32 folder. Choose 'Yes' to replace the old, damaged file.