Application Error

Michael,
Thank you for contacting us with your concerns and we regret to hear about the inconvenience caused. Do you see any error or warning messages on your AVG interface when you try to launch it, run a scan or install the updates? If so, please try to run a repair installation of your AVG as suggested below.
To repair your AVG please follow these instructions:

Go to Start -> Control Panel.
Note: Click Settings first if Control Panel is not available in the Start menu.
Open (Programs) -> Programs and Features, or Add or Remove Programs.
Select AVG Protection in the list of programs.
Click the Change or Change/Remove button.
Select Repair.
Follow the instructions on your screen to complete the installation.
Restart your computer.

You could also have a look at the suggestions provided by Microsoft in a similar situation here https://answers.microsoft.com/en-us/windows/forum/windows_8-gaming/the-exeption-breakpoint-a-breakpoint-has-been/b0606452-1497-4e3b-92ec-d47327aeaa07 .

Got avguix.exe - Application Error. The exception breakpoint has been reached (0x880000003) occurred at location 0x62e90bc9. Why have I suddenly got this message, how do I fix it, and is avg working in the meantime?

Michael,
Thank you for contacting us with your concerns and we regret to hear about the inconvenience caused. Do you see any error or warning messages on your AVG interface when you try to launch it, run a scan or install the updates? If so, please try to run a repair installation of your AVG as suggested below.
To repair your AVG please follow these instructions:

Go to Start -> Control Panel.
Note: Click Settings first if Control Panel is not available in the Start menu.
Open (Programs) -> Programs and Features, or Add or Remove Programs.
Select AVG Protection in the list of programs.
Click the Change or Change/Remove button.
Select Repair.
Follow the instructions on your screen to complete the installation.
Restart your computer.

You could also have a look at the suggestions provided by Microsoft in a similar situation here https://answers.microsoft.com/en-us/windows/forum/windows_8-gaming/the-exeption-breakpoint-a-breakpoint-has-been/b0606452-1497-4e3b-92ec-d47327aeaa07 .