Cannot uninstall avg and avg zen 2015 free

Hello Natalie,
Sorry to know that. Please try uninstall AVG using AVG remover tool. You can run AVG remover tool based on your OS (32-bit or 64-bit) to completely remove AVG. 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

Please feel free to contact us for any further assistance.
Thank you.

I installed avg but I think it isn't good, so I tried to uninstall it but I cannot.  It is giving me this error code 0xC0070643…event exec_finished.  Can someone help me please?

Hello Natalie,
Sorry to know that. Please try uninstall AVG using AVG remover tool. You can run AVG remover tool based on your OS (32-bit or 64-bit) to completely remove AVG. 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

Please feel free to contact us for any further assistance.
Thank you.