Had to uninstall AVG after updates almost crashed my pc. Why?

Hello Carolyn,

I regret for the inconvenience caused. AVG recently got updated to the latest version 17.7 and this have fixed all the bugs that were present in the previous version. The recent update might have got failed or corrupted due to a network issue. Please install the latest version of AVG Internet Security http://support.avg.com/SupportArticleView?urlname=Download-and-install-AVG-AntiVirus-Internet-Security-or-Premium-Security in your computer and check if everything works fine. If you face any difficulties, please let us know and we will assist you further.

Hello Carolyn,

I regret for the inconvenience caused. AVG recently got updated to the latest version 17.7 and this have fixed all the bugs that were present in the previous version. The recent update might have got failed or corrupted due to a network issue. Please install the latest version of AVG Internet Security http://support.avg.com/SupportArticleView?urlname=Download-and-install-AVG-AntiVirus-Internet-Security-or-Premium-Security in your computer and check if everything works fine. If you face any difficulties, please let us know and we will assist you further.

What is wrong with AVG? I have used it for years, but now it has almost crashed my pc and I had to uninstall everything. What is a good alternative to AVG?