Hi @Nirmala Mariappan,
It is not recommended to remove users and trusted installer from the inetpub\wwwroot folder.
The "Users" account represents all the users on the system, including standard user accounts. Removing this account from the "inetpub\wwwroot" folder may cause permission issues for users who need to access web content.
Also, you should not remove TrustedInstaller under any circumstances. TrustedInstaller is not malware and will not harm your computer other than causing CPU hogs. It is an essential part of your operating system and takes care of complex operations in Windows system. Without it, your system will eventually break, often beyond repair. If someone tells you to remove TrustedInstaller, do not follow their instructions.
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Best regards,
Yurong Dai