He found threads — Reddit, Microsoft Answers, BleepingComputer. Half the posts screamed backdoor . The other half called it benign . A few were from Microsoft MVPs explaining it was part of the new framework.

Microsoft never announced it in glossy ads. You won’t find it in Settings > Accounts. But it lives there, in the shadows of lusrmgr.msc , waiting.

Get-LocalUser -Name "WSIAgent" The output:

It’s not a hacker. Not a backdoor. Not a mistake.