This is because I usually ran the update, then shut down the PC.
After my Norton subscription expired, I loaded Mc Afee Internet Security Suite.
Users might also come across Compressed DAT Packages, which include an archived DAT file, and Super DAT Package Installers (SDAT files), which might include a new scanning engine in addition to the DAT file and an installer.
You can read more about what package is right for your product on this page.
For this reason, it is essential to protect your computer not only against viruses and spyware, but against any suspicious activity that might be a sign of danger in your computer as well.
With F-Secure Anti-Virus, you can open e-mail attachments and use your computer without any fear of virus infections, spyware intrusion or malicious programs that can take over your computer.
There is also a new breed of threats on the Internet, such as carefully planned targeted attacks that can pass through conventional security solutions unnoticed, possibly taking over your computer for illegal purposes.As it is now the error happens, Update states that it failed and will keep trying to install it later which will always fail.As I said I have dealt with 2 support engineers and 1 supervisor and all they have done after hours of trying to "fix" the problem is get the failed definition to install insisting that the problem is now fixed- they turn Norton off or uninstall it, turn Defender on, install the definitions then turn Defender back off and Norton back on or make me reinstall it.Remember how smoothly your PC ran when you first got it? New for 2017: Our all-new Software Updater automatically installs the latest updates to fix bugs & plug security holes.This file updates your F-Secure product with the latest virus definitions.F-Secure Anti-Virus has been designed to automate all key tasks required to keep your computer and data safe from viruses - it's so easy, all you have to do is install and forget about it.My thanks to Alan May 6 2012 for fixing my AVG update problem.As usual, I updated the software frequently as advised.I finally turned off the automatic update feature and also stopped initiating manual updates and I have not had an Internet connection problem since (4-6 months).I wonder how many AVG users have been tempted to abandon AVG for this very reason and give Zonealarms new package a try.Thanks again Alan for saving me a lot of time and trouble.