CCleaner, a popular app, installed by many people & computer repair people is now being flagged as ‘potentially unwanted software’ by Microsoft Defender which is Microsoft’s built-in antivirus for Windows 10.
Potentially unwanted software – more commonly referred to as potentially unwanted apps (or PUAs) – refers to applications which an antivirus doesn’t find anything malicious with, but which may exhibit unwanted behaviors of one kind or another.
The unwanted behaviour with CCleaner is that it can install applications such as Avast & AVG on computers as Piriform who owns CCleaner also owns AVG and Avast.
Windows 10 comes with STORAGE SENSE an application that creates space on your computer – which is what many who installed CCleaner wanted when they installed it.
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