Query relates to a Toshiba laptop running Win 8 and Avast Internet Security.
When opening Firefox or clicking on the Avast toolbar icon, I'm getting a warning headed "avastui.exe - System Error", the text of which is "The program can't start because mfc110u.dll is missing from your computer. Try reinstalling the program to fix this problem."
1. Is the fix actually just a simple case of uninstalling Avast using the control panel, downloading the current version again then re-installing the license file?
2. If this is a registry problem, what's best to use for registry cleaning and maintenance and generally keeping the thing running sweetly when used by a non-tech person?
Thanks