The Vanguard Not Initialized error occurs when your Windows or a 3rd party program is interfering with Vanguard or its service.
You have to follow the simple steps to get rid of this error.
1. First, you will need to search for services and click on “run as administrator”.
2. After that, left click on the virtual disk and go to properties.
3. You have to select Automatic and press the OK button.
4. left click on Windows update and go to properties.
5. Then you have to select “Automatic” and Press “OK”.
6. Finally, restart your PC to check if the error is resolved.