Unable to modify machine.config file

Question

I want to improve performance of my ASP.NET web application and want to change "processModel" tag in machine.config. But I am unable to modify "machine.config" file located at framework directory. Though I have disabled "readonly" permission for the file, still it is not working.

You will need administrator permissions to edit machine.config. — driis, Jul 15 '10 at 18:14

score 29 · Answer 1 · edited Feb 14 '13 at 08:53

29

You need to run the text editor that you are using to edit the machine.config file as Administrator.

edited Feb 14 '13 at 08:53

Ivan Ferić

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answered Feb 14 '13 at 08:35

Johan Zietsman

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score 3 · Answer 2 · answered Mar 11 '15 at 07:22

3

Open it using NotePad++ (or) NotePad. You have to run Notepad first in Administrator more (right click, select Run as administrator), then open machine.config

Ramkumar Thangavel.

answered Mar 11 '15 at 07:22

Ramkumar Thangavel

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score 1 · Answer 3 · answered May 03 '16 at 15:47

For Visual Studio:

Right click on Visual Studio icon

(If you are right clicking on a taskbar icon, then you'll need to right click on the Visual Studio icon in the list as well)

Click Run as administrator
Within Visual Studio, click File->Open->File... (shortcut is Ctrl + O)
From here, navigate to your machine.config. For .net 4, it's probably here: C:\Windows\Microsoft.NET\Framework\v4.0.30319\Config

Unable to modify machine.config file

3 Answers3