Microsoft Defender warns that CCleaner is a 'potentially unwanted application'... here's why


If you have tried to install the Windows cleanup utility CCleaner recently, you may have noticed that Microsoft Defender springs into action warning you that it is a potentially unwanted application (PUA).
This is not the first time Piriform CCleaner has got on the wrong side of Microsoft -- it was previously blocked from being mentioned in the Microsoft Community forums. The Avast-owned software has been popular with people seeking to tidy up and optimize Windows 10 for a number of years, so what's going on and why does Microsoft flag it up as a PUA?
Microsoft's Windows 10 antivirus now available for Linux


Microsoft is increasingly showing love to Linux, with the most obvious example of this being the inclusion of Windows Subsystem for Linux (WSL) in Windows 10.
Today, the software giant announces the general availability of Microsoft Defender Advanced Threat Protection (ATP) for Linux systems.
Microsoft Defender ATP preview arrives for Linux distros -- iOS and Android versions to follow


Microsoft has released a public preview of its Microsoft Defender Advanced Threat Protection (ATP) for various Linux distributions.
The company says that the tool will also be coming to iOS and Android later this year, and more details of these mobile editions are due to be revealed at next week's RSA Conference. The spread to additional platform comes after Microsoft rebranded Windows Defender as Microsoft Defender last year.