After using Avast 4 for several years I lately installed Avast Internet Security (5.1.889). As recommended in the knowledgebase I deleted the registry entry Avast4, uninstalled 5.1.889, and deleted extend.dat from the folders in three accounts on my PC. Now in two accounts Outlook is working perfecty, in one account the error message still appears.
What should I do? ???
Uninstall avast from Control Panel (if possible). If, for any reason, you can’t run it, try booting in Safe Mode and doing it from there. Anyway, boot after that.
Run the avast! Uninstall Utility saved on 1. If, for any reason, you can’t run it, try booting in Safe Mode and doing it from there. Anyway, boot after you’ve run it.
Install avast! using the setup saved on 2. Boot.
Register your free copy or add the license key for Pro.
Check and post the results. If, for any reason, you did not solve, try doing the step 3 in Safe Mode anyway.