Navigate to > Advanced Options > Startup Settings > Restart .
To allow your PC to interact with the device's file system via ADB, you must unlock Developer Options: Open on your Allwinner A133 device. Scroll down and select About Tablet (or About Device). allwinner a133 usb driver
Run the installer. During the process, a prompt will appear asking to install "Drivers from Allwinner Technology." Click or Continue Anyway . Navigate to > Advanced Options > Startup Settings > Restart