could you please check this:
- open menu Start -> Run -> enter "%tmp%" and confirm OK
- find folder named "AVG Download manager" (or similar) and remove it
- run the installation through download manager again
Was the installation successful?
Do you have installed AVG Standalone LinkScanner before?
When at the end of the installation this pops up.
Installer initialization failed due to the following error:
Warning: Internal error. Dialog with id "AvgDetectedDlg" was not found in the setup.