When you upgrade to the latest Windows 8.1, several actions may get triggered in relation to a select bunch of software which may be installed on your computer. Microsoft has also released a list of software that may be affected during the behavior. Software like SuperNova, Searchqu Toolbar, ZoneAlarm, Expression Studio, Visual Studio may change behavior during or after the upgrade process. McAfee AV Products, Trend Micro Titanium, Panda Security, Outpost Antivirus Pro, Outpost Security Suite Pro are some of the antivirus software that may get disabled during the Windows 8 to Windows 8.1 upgrade. For complete details check out KB2882342.
