Cannot provide permission to IIS_IUSRS on C:/Windows/Temp

Question

I have an ASP.NET Web Forms Application which has some reports created using SAP Crystal Reports Runtime for .NET Framework 4. The C:\Windows\Temp folder contains my Report files of the application. That's why, I need to provide IIS_IUSRS permission on C:\Windows\Temp.

Problem is, whenever I'm trying to give IIS_IUSRS permission to Temp, I'm getting this error message:

Error Applying Security


An error occured while applying security information to


C:\Windows\Temp


Access is Denied

If I click on the option 'Continue', I get the following error:

Windows Security


Unable to save permission changes on Temp

Access is denied

I need urgent solution to this because I have an emergency delivery. At any cost, I MUST have to grant IIS_IUSRS access to C:\Windows\Temp. Please help urgently.

.NET Framework - 4, IIS - 7, Windows 7 Ultimate - 64 bit.

How do you set the permissions, Windows Explorer? or elevelated command prompt and icacls.exe? I also suggest running `chkdsk` on your C: drive. — Peter Hahndorf, May 25 '15 at 07:44
Open `cmd.exe` as administrator and run `icacls.exe C:\Windows\Temp /grant "BUILTIN\IIS_IUSRS:(OI)(CI)(M)"` what do you get? — Peter Hahndorf, May 26 '15 at 08:02
@PeterHahndorf I'm currently engaged in another task. I'll let you know once I get back to this issue. Thanks very much. :) — Choudhury Saadmaan Mahmid, May 26 '15 at 08:05

score 0 · Answer 1 · edited Dec 26 '17 at 02:26

How I Solved the Problem
1. Run cmd as admin (keep it open ).
2. Open task manager and kill explorer.exe.
3. Go to previously opened CMD. Type explorer.exe and hit enter.
4. Navigate to c:\windows\temp (right click) -> properties -> security
5. Now you will be able to change \IIS_IUSRS to Full Control

Edit: Some applications may give an error about elevated explorer.exe . It will be fixed after restart.

If you don’t want to restart: Take explorer.exe out of Administrator mode;
1. Go to previosly opened task manager. Kill explorer.exe
2. In task manager file -> start new process write there explorer.exe
3. Now the explorer.exe is in normal mode.

Cannot provide permission to IIS_IUSRS on C:/Windows/Temp

1 Answers1