Under Review
Last Updated: 20 Aug 2019 10:27 by Dogukan
Imported User
Created on: 13 Oct 2017 04:59
Type: Feature Request
Failed to register Fiddler as the system proxy
The error messages pops up on Windows 10 version 1703.  Fiddler installs and runs with not issues on Windows 10 version 1607.
Posted on: 20 Aug 2019 10:27
s.a win 10  
Herhangi bir nedenle devre dışı bırakma nedenini değiştiremezseniz, regedit'i açın, HKLM \ SYSTEM \ CurrentControlSet \ services \ WinHttpAutoProxySvc adresine gidin ve başlangıç ​​değerini 2 olarak değiştirin.

  bu sekilde bu bolume ulasamadım


Imported User
Posted on: 29 Sep 2018 05:00
The solution is in the following link, but you have to reboot after applying it to make is active.


A copy of the text, if the link will vanish one day:


Type Windows+R and enter services.msc is the textbox.

Then look for WinHTTP Web Proxy Auto-Discovery Service, right click and select Properties.

Change the startup type to Automatic and then click on Start.

If for any reason you can't change the startup type cause disabled, open regedit, go to HKLM\SYSTEM\CurrentControlSet\services\WinHttpAutoProxySvc and change start value to 2.

Posted on: 13 Oct 2017 05:00
This is most likely a bug in either Windows, or a configuration problem in your environment. Does it still happen if you right-click Fiddler and Run As Administrator? Is there any text on Fiddler's LOG tab? If you try to change the system proxy settings manually to port 8888 (In Fiddler, click Tools > Wininet Options > Connections > LAN Settings) do the changes "stick" after you hit OK and then reopen LAN Settings)?