You start the Safecode Defencecure setup in Windows. The setup prompts you to restart the computer to complete the setup after copying the program file. You restarted the computer, and Safecode Defencecure starts the pre-OS Recovery Console installation. You see the error message ” Error Code 8803, Failed to turn A20 on” during the installation.
A20 gate is a logical AND gate that the A20 CPU address line passes through before reaching the system bus. The pre-OS Recovery Console installation needs to turn on the A20 gate for extended memory access. For some reason, the pre-OS Recovery Console setup failed to turn on the A20 gate; therefore, the pre-OS Recovery Console setup cannot complete.
Press any key to restart the computer and skip the pre-OS Recovery Console setup. The Windows will load.
After you boot back in the Windows, please send the setup log files to [email protected] for technical assistance.