Hi. I received screen warning from AVG this morning that update was required, from AVG Free 9.0.927 to AVG Free 2012. Downloading went well, but installation failed with error code 0xC0070643 as above. Additional info in onscreen message was as follows:
"Addition message: MSI Engine: Failed to install the product.
An error occurred while uninstalling old version (0xE001003D)
Context: AVG product installation, MSI action failed"
Please, am I still protected by the old product?
What can I do to install the new product successfully?
Thank you, Dusan. Sorry if the solution involved what I should have done in the first place (i.e. RTFM), but previous updates have been trouble-free when prompted by onscreen warning (rather than looked-for by me in the first place). BTW, had more trouble on second attempt, almost installed but Error Code 0xe0010058. Following your advice on the thread for that code helped, and the third time worked perfectly. Thanks for the help, guys.