Home IIS iis_iusrs disappeared on Windows Server 2012R2
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IIS iis_iusrs disappeared on Windows Server 2012R2

Jano Published in 2017-12-07 18:11:35Z

I have a .Net service installed on a Windows Server 2012R2.

Today, the users have complain because they couldn not store more files on server, it should be permissions related. Right click on the folder -> secutiry and IIS_IUSRS does not exist anymore.

How can be this group deleted?, is it possible to restore it?

I have restored IIS service and machine with no luck.


Muqeet Khan
Muqeet Khan Reply to 2017-12-07 18:56:07Z

There is nothing special in the IIS_IUSRS group. Its a local group created with NT Authority\IUSR as a member. If its deleted you can just create it with the same name and with the above user in it. That's all. Nothing to restore. You will have to look into restore for folders that might have lost this group when deleted. By default the only place I know this group has permissions is the inetpub\wwwrtoot folder with read permissions.

Normally, as with any other user management feature you need admin privilege to delete this group. Did you check user management to see if the group is actually deleted from local machine or just removed from this folder?

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