Secunia PSI v3.0

A Full Review of Secunia PSI, a Free Software Updater

Screenshot of Secunia Personal Software Inspector v3.0 in Windows 7
Secunia PSI v3.0. © Secunia ApS

According to the official website for Secunia PSI, version 3.0, available from MajorGeeks below, is the last version available, and all existing installations of PSI will stop working in 2018. See our list of the best free software updaters for some free PSI alternatives, like Patch My PC.

Secunia PSI (Personal Software Inspector) is a really simple and completely free software updater. It identifies insecure programs you might have installed and then provides an easy way to update them to patch the vulnerabilities.

More About Secunia PSI

  • Works with 32-bit and 64-bit versions of Windows 10Windows 8Windows 7Windows Vista, and Windows XP
  • Secunia PSI lists out all the programs installed to your computer and then separates the ones that need updated from the ones that are already up-to-date
  • Can be setup to update programs automatically, download them automatically, or simply notify you of required updates without actually downloading or installing anything automatically
  • Multiple drives can be scanned for outdated programs, including external hard drives
  • Secunia PSI displays a history for you so you can review what applications updated and which ones tried and failed

Secunia PSI Pros & Cons

Secunia PSI doesn't update all your software, but its intended purpose is definitely useful:


  • Updates can be downloaded and installed automatically
  • Used for updating insecure applications
  • Simple interface
  • Extremely easy to use
  • Can ignore updates from any program


  • Takes a long time to scan for outdated programs
  • Doesn't show the version number of the updated programs
  • Can't modify the scanning schedule
  • Will not update all your outdated software
  • Is often slow at scanning and starting up
  • Often has troubles connecting to the Secunia website

My Thoughts on Secunia PSI

Secunia PSI is a unique program because is seems to miss updates that other software updaters detect, but it also shows updates that other tools miss.

While testing Secunia PSI, it was able to update Flash, Java, iTunes, QuickTime, and other programs completely automatically and without any intervention on my part, which was really great.

Unfortunately, it also missed a handful of programs that other tools I used detected as needing an update.

Because Secunia PSI only updates programs that require a security fix, you shouldn't use it as your main tool for updating everyday programs. Instead, I recommend using it after working with another software updater so you can be sure all your applications are secure.

Secunia PSI fixes security vulnerabilities automatically, so there's really no real need to think about it after you've installed it.