False positive or not, in Windows 10: [email protected]

I've just noticed tha t a file, c:\windows\[email protected], is identified as Riskware, Application.Patcher.T by PSB Workstation 10.60.

The file name is quite strange, but it is on a new Acer PC and a new MSI all-in-one, just installed and never used by anybody. Both PCs are installed with Windows 10 Pro OEM.

 

Searching on the web I've found references to a Key Management System, but I've found nothing relevant on microsoft web sites.

 

Does anybody know something more precise about this file. Should it be considered riskware or not?

 

Thanks.

 

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