MTPW is the intialism for MiniTool Partition Wizard, a long-time mainstay in my stable of free and capable Windows tools. I’m not sure exactly why MS/Defender decided it’s a “potentially unwanted app.” That said you can see the message from Microsoft Defender Beta as the lead-in graphic, which also labels it as a threat, albeit an abandoned one. To repeat: I don’t know why Defender threat-flags MTPW download, but there it most assuredly is.

Digging into Defender Threat-Flags MTPW

Turns out that pw12-free.exe is an old, outdated name for MiniTool Partition Wizard (note the 2020 date, if you’re not convinced). The current version is named pw-free-online.exe. It throws no Defender Beta alerts, nor does VirusTotal find it at all objectionable. I guess that makes this one of those WTF moments that Windows can occasionally throw this way.

Given a security alert, I’d much rather have it turn out to be a false positive as is apparently the case here. Indeed, Everything can’t even find a copy of the offending file on my test PC (a 2018-vintage Lenovo Yoga 380X). Another bullet dodged, apparently, or less-than-vicious threat averted. I can’t make up my mind: you decide.

The Good Thing About False Positives…

Is, of course, that you can cheerfully ignore them. Indeed, because the offending file can’t even be found, it’s no longer a concern — if ever it was one. I checked the current download (pw-free-online.exe) just to make doubly-darned sure. But there’s no threat there that I can see. Good enough for me!