Quote:Over half of applications installed on Windows PCs are out-of-date, potentially putting the security of users at risk through flaws in software that have already been patched by vendors.

Around 55 percent of software installed on PCs across the globe is in the form of an older version of the application, according to research by security company Avast — and that number has risen from 48 percent in their previous report.

Based upon anonyimized and aggregated data from 163 million devices around the world, Avast's PC trends report also suggests that almost one in six Windows 7 users and one in ten Windows 10 users are running out-of-date versions of their operating system, also leaving them open to exploitation of system-level security vulnerabilities.

Some of the programs most commonly left out-of-date include Adobe Shockwave, VLC Media Player, Skype, Java Runtime Environment, and 7-Zip Filemanager.