Megaman,

Right clicking on the icon will allow you a manual update.
Let Avast finish the update!

Next, let’s go into Internet Explorer Toos/Internet Options/Advanced…
Scroll down to the Browsing category and see if the box for Install on demand (IE) is checked. If it is, then uncheck it. If it is not…then check the box. (Box is normally checked by default)

Next, go into Start/Programs/Settings/Control Panel/Add-Remove…
Highlight Avast. You will be given the option to Repair.
Click repair and let Avast fix any errors it finds in its’ startup files.

Reboot and check the system again.

What is happening is the computer senses that it “needs” additional files to continue. This is not always necessary.

If system and Avast now work properly, go back and make sure the Install on Demand box is checked.