Error Code OxE0018D32

Help? My old desktop running Windows 7 has AVG free 2015. A check today showed it has stopped. I tried to activate again - it won't. I tried to re-install it and got a notice about "Zen"? Not familiar with that. Re-install attempts keep going to 86% downloaded, then I get error code: OxE0018D32. Does anyone know what it is, and how to fix it?
Thanks!

Hello Lonnie,
We are sorry that you are unable to install AVG program. Please use this offline installer link to download AVG program for OS with 32 bit ( http://files-download.avg.com/inst/mp/AVG_Antivirus_Free_x86_694.exe ) and use this link to download the program for OS with 64 bit ( http://files-download.avg.com/inst/mp/AVG_Antivirus_Free_x64_693.exe ). 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 ). Please feel free to contact us for further assistance. Thank you.