AVG Internet Sercurity version.....states it requires an update as virus definitions are out of date

When I try to perform the update it continually fails. States it failed due to invalid file signature. I have no idea what to do to fix this or if this is an AVG bug. Never happened before.

Hello Michael,

I understand the inconvenience and this is a known issue.
To resolve it, perform a re-installation of AVG Internet Security program.
For uninstallation, refer this (article).
To install AVG Internet Security program, follow the steps as mentioned (here).
Keep us informed about the status.

Hello Michael,

I understand the inconvenience and this is a known issue.
To resolve it, perform a re-installation of AVG Internet Security program.
For uninstallation, refer this (article).
To install AVG Internet Security program, follow the steps as mentioned (here).
Keep us informed about the status.