AVG and Mawarebytes,adwCleaner, and a laptop

I have 2 Desktops and 1 Laptop with AVG Internet Security version 16 installed.  1 Desktop updated to 17.7 but in passive mode.  I uninstalled Malwarebytes and 17.7 became active.  ADWCleaner (a Malwarebytes product) still works.  The 2nd Desktop updated to 17.7, I uninstalled Malwarebytes and 17.7 became active.   Both Malwarebytes and ADWCleaner were deleted.  The Laptop will not update to 17.7 from version 16 after first deleting Malwarebytes.  I need help.

Hello Leo,

I understand that you are unable to update AVG Internet Security to latest version in your laptop. Please use this link http://support.avg.com/SupportArticleView?urlname=How-to-troubleshoot-issues-after-upgrade-to-the-latest-AVG-antivirus-product to uninstall AVG completely from your computer.
NOTE: Please run AVG Clear tool first and then run AVG remover tool.

Please use this link http://support.avg.com/SupportArticleView?urlname=Download-and-install-AVG-AntiVirus-Internet-Security-or-Premium-Security to install latest version of AVG Internet Security.

If you face any difficulties, feel free to contact us.