Hello Dele. Some of the traces of the previous installation might caused the issue. I would request you to run AVG remover tool based on your OS (32-bit or 64-bit) to completely remove AVG and then re install the program. To determine whether your OS is a 32-bit or 64-bit, please click on this link. http://support.microsoft.com/en-us/kb/827218
To download AVG Remover tool for 32-bit: http://download.avg.com/filedir/util/support/avg_remover_stf_x86_2015_5501.exe
To download AVG Remover tool for 64-bit: http://download.avg.com/filedir/util/support/avg_remover_stf_x64_2015_5501.exe
Hello Dele. Some of the traces of the previous installation might caused the issue. I would request you to run AVG remover tool based on your OS (32-bit or 64-bit) to completely remove AVG and then re install the program. To determine whether your OS is a 32-bit or 64-bit, please click on this link. http://support.microsoft.com/en-us/kb/827218
To download AVG Remover tool for 32-bit: http://download.avg.com/filedir/util/support/avg_remover_stf_x86_2015_5501.exe
To download AVG Remover tool for 64-bit: http://download.avg.com/filedir/util/support/avg_remover_stf_x64_2015_5501.exe