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Service name: WinHttpAutoProxySvc
Display name: WinHTTP Web Proxy Auto-Discovery Service

Description:
WinHTTP Implements the client HTTP stack and provides developers with a Win32 API and COM Automation
component for sending HTTP requests and receiving responses. In addition, WinHTTP provides support for
auto-discovering a proxy configuration via its implementation of the Web Proxy Auto-Discovery (WPAD)
protocol.

Path to executable:
C:\Windows\system32\svchost.exe -k LocalService

Type services.msc and press Enter

Services.msc:

Please go to Pearl button (Start) and click on the Search programs and files
For more information about the change from Start to Pearl button click here

Locate WinHTTP Web Proxy Auto-Discovery Service observe his current status and open to make changes.

From General tab you can Start/Stop and change the WinHTTP Web Proxy Auto-Discovery Service.

To finish press ok button and close Services window

Type regedit and press Enter

Please confirm User Account Control pop-up

Microsoft official disclaimer

Warning Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by
using another method. These problems might require that you reinstall the operating system. Microsoft
cannot guarantee that these problems can be solved. Modify the registry at your own risk.

Please navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\WinHttpAutoProxySvc  
and locate Start registry key

Regedit:          

Please go to Pearl button (Start) and click on the Search programs and files
For more information about the change from Start to Pearl button click here

   

   

Type cmd, right click on cmd icon under the Programs and click on Run as administrator

Please confirm User Account Control pop-up

Please select, right and copy a registry key from below, then right click on command prompt window
, select Paste and press Enter

To Start WinHTTP Web Proxy Auto-Discovery Service:

net start WinHttpAutoProxySvc

Note: You can’t start a service if Startup type is on Disabled.

To Stop WinHTTP Web Proxy Auto-Discovery Service:

net stop WinHttpAutoProxySvc

To change Startup Type:

Automatic:
REG add "HKLM\SYSTEM\CurrentControlSet\services\WinHttpAutoProxySvc" /v Start /t REG_DWORD /d 2 /f

Manual:
REG add "HKLM\SYSTEM\CurrentControlSet\services\WinHttpAutoProxySvc" /v Start /t REG_DWORD /d 3 /f

Disabled:
REG add "HKLM\SYSTEM\CurrentControlSet\services\WinHttpAutoProxySvc" /v Start /t REG_DWORD /d 4 /f

Automatic (Delayed Start):
REG add "HKLM\SYSTEM\CurrentControlSet\services\WinHttpAutoProxySvc" /v Start /t REG_DWORD /d 2 /f

Note: When you change to Automatic (Delayed Start) a new key DelayedAutostart is created with value 1.
REG add "HKLM\SYSTEM\CurrentControlSet\services\WinHttpAutoProxySvc" /v DelayedAutostart /t REG_DWORD /d 1 /f

When you change to Automatic from Automatic (Delayed Start), DelayedAutostart change value to 0.
REG add "HKLM\SYSTEM\CurrentControlSet\services\WinHttpAutoProxySvc" /v DelayedAutostart /t REG_DWORD /d 0 /f

CMD:          

Please go to Pearl button (Start) and click on the Search programs and files
For more information about the change from Start to Pearl button click here

Msconfig:          

Please perform the following steps:

Please go to Pearl button (Start) and click on the Search programs and files
For more information about the change from Start to Pearl button click here

Write msconfig and press Enter

   

   

Double click on Start and edit the value:

Change Startup type :

Automatic - 2
Manual - 3
Disabled - 4
Automatic (Delayed Start) - 2

Note: When you change to Automatic (Delayed Start) a new key DelayedAutostart is created with value 1.
When you change to Automatic from Automatic (Delayed Start), DelayedAutostart change value to 0.

In System Configuration please go to Services tab and locate WinHTTP Web Proxy Auto-Discovery
Service. Uncheck the box to prevent this service to start and then press OK to finish.  

Any change make in System Configuration will be apply after restart.