Help me! Avg deleted something important

AVG Protection
3

Hello John, may I know which AVG program have you installed on your computer?

1

It deleted me an important thing called "SysMenu.dll" and every time I power up my pc, three warnings appear on my screen. Can anyone help me to restore that, or fix it I would be thankful.

Here's an image by the way

User-added image

2

Hello John, may I know which AVG program have you installed on your computer?