https://support.avg.com/answers?id=906b0000000DaFd

AVG Performance
4

Hello Sally,
We are sorry to know that. In this case, we suggest you to uninstall and reinstall Google Chrome browser and see if that fix the issue.
Thank you

1

Clicked on Rescue Centre, undid changes, but Google Chrome still shows a black screen

2

Hello Sally,
We are sorry to know that. In this case, we suggest you to uninstall and reinstall Google Chrome browser and see if that fix the issue.
Thank you

3

Sally-Anne, Also in future please try to keep the whole conversation in one question/thread to speed up any resolution. You should actually have carried on posting in your original topic (https://support.avg.com/answers?id=906b0000000DaFd).
AVG Guru