I re-installed Avast Free 2015.10.0.2208 (after doing an uninstall via Control Panel, reboot, running avastclear.exe in safe mode, reboot) but in the Vista SP2 Control Panel > Programs and Features the “Size” column is empty! Help please.
It can be a glitch, update to the latest version.
Reboot 2 or 3 times and check again.
How does Add/Remove Programs get the size and other information?
http://blogs.msdn.com/b/oldnewthing/archive/2004/07/09/178342.aspx#comments