Error after click on URL link (after Opera browser is uninstalled)

After uninstalling Opera browser (for example ver. 10.63), your attempts to open a web page by clicking on a URL link may fail with an error message. The error is "This operation has been canceled due to restrictions in effect on this computer. Please contact your system administrator."

Setting the default browser in Internet Explorer (IE) does not help.
Setting the default program for HTML in Windows 7 does not help.

Solution:
This solution is for Windows 7 x86.
x64 version of Windows has different paths.

Place the attached code block into a file named REPAIR.REG and run it. Then restart your computer.
It sets IE as your default browser and repairs the registry settings that got broken by uninstalling Opera.

The problem is probably mainly with this key:
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\htmlfile\shell\open\command]

Editor's Notes:
Making changes to your registry can be dangerous. We recommend backing up your registry before making changes.

You must have administrative permissions to run this REG file.

Windows Registry Editor Version 5.00
                      
                      [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.htm]
                      "PerceivedType"="text"
                      @="htmlfile"
                      
                      [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.html]
                      "PerceivedType"="text"
                      @="htmlfile"
                      
                      [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.mht]
                      @="mhtmlfile"
                      [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\.mhtml]
                      @="mhtmlfile"
                      
                      [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\http]
                      @="URL:HyperText Transfer Protocol"
                      "AppUserModelID"="Microsoft.InternetExplorer.Default"
                      "EditFlags"=dword:00000002
                      [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\https\shell\open\command]
                      @="\"C:\\Program Files\\Internet Explorer\\iexplore.exe\" -nohome"
                      
                      [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\htmlfile\shell\open\command]
                      @="\"C:\\Program Files\\Internet Explorer\\iexplore.exe\" -nohome"
                      
                      [HKEY_LOCAL_MACHINE\SOFTWARE\Clients\StartMenuInternet]
                      @="IEXPLORE.EXE"
                      [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Shared\HTML]
                      "KnownIDs"="htmlfile"
                      
                      [HKEY_CLASSES_ROOT\http\shell\open\command]
                      @="\"C:\\Program Files\\Internet Explorer\\iexplore.exe\" -nohome"
                      
                      [HKEY_LOCAL_MACHINE\SOFTWARE\Clients\StartMenuInternet]
                      @="IEXPLORE.EXE"
                      
                      [HKEY_LOCAL_MACHINE\SOFTWARE\Clients\StartMenuInternet\IEXPLORE.EXE]
                      @="Internet Explorer"
                      "LocalizedString"="@C:\\Program Files\\Internet Explorer\\iexplore.exe,-702"
                      
                      [HKEY_LOCAL_MACHINE\SOFTWARE\Clients\StartMenuInternet\IEXPLORE.EXE\DefaultIcon]
                      @="C:\\Program Files\\Internet Explorer\\iexplore.exe,-7"
                      
                      [HKEY_LOCAL_MACHINE\SOFTWARE\Clients\StartMenuInternet\IEXPLORE.EXE\InstallInfo]
                      "IconsVisible"=dword:00000001
                      "ShowIconsCommand"="\"C:\\Windows\\System32\\ie4uinit.exe\" -show"
                      "ReinstallCommand"="\"C:\\Windows\\System32\\ie4uinit.exe\" -reinstall"
                      "HideIconsCommand"="\"C:\\Windows\\System32\\ie4uinit.exe\" -hide"
                      
                      [HKEY_LOCAL_MACHINE\SOFTWARE\Clients\StartMenuInternet\IEXPLORE.EXE\shell]
                      
                      [HKEY_LOCAL_MACHINE\SOFTWARE\Clients\StartMenuInternet\IEXPLORE.EXE\shell\naom]
                      "MUIVerb"="@C:\\Windows\\System32\\ieframe.dll,-39229"
                      
                      [HKEY_LOCAL_MACHINE\SOFTWARE\Clients\StartMenuInternet\IEXPLORE.EXE\shell\naom\command]
                      @="\"C:\\Program Files\\Internet Explorer\\iexplore.exe\" -extoff"
                      
                      [HKEY_LOCAL_MACHINE\SOFTWARE\Clients\StartMenuInternet\IEXPLORE.EXE\shell\open\command]
                      @="C:\\Program Files\\Internet Explorer\\iexplore.exe"

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Comments (2)

Motaba

Author

Commented: 2010-11-25

In case this problem, whejn you uninstalled Google Chrome browser from Windows 7
you need to set those registry:

Windows Registry Editor Version 5.00

[HKEY_CLASSES_ROOT\ftp\DefaultIcon]
@="C:\\Program Files\\Internet Explorer\\iexplore.exe,0"

[HKEY_CLASSES_ROOT\ftp\shell\open\command]
@="\"C:\\Program Files\\Internet Explorer\\iexplore.exe\" -nohome"

[HKEY_CLASSES_ROOT\http\DefaultIcon]
@="C:\\Program Files\\Internet Explorer\\iexplore.exe,0"

[HKEY_CLASSES_ROOT\https\DefaultIcon]
@="C:\\Program Files\\Internet Explorer\\iexplore.exe,0"

[HKEY_CLASSES_ROOT\https\shell\open\command]
@="C:\\Program Files\\Internet Explorer\\iexplore.exe"

[HKEY_CURRENT_USER\Software\Classes\.htm]
@="htmlfile"

[HKEY_CURRENT_USER\Software\Classes\.html]
@="htmlfile"

Commented: 2011-01-18

Better solution for error: Restrictions this operation has been cancelled due to restrictions in effect on this computer

If Internet Explorer is missing from Default Programs - Set Default Programs you can try this:
Open the Control Panel (Classic View)
Click on the Default Programs icon.
Click on the Set program access and computer defaults link.
Dot Custom and click on the drop down arrow to the right of it to expand Custom.
Scroll down to the Choose a default web browser section.
To the right of Internet Explorer, check the Enable access to this program box.

http://www.vistax64.com/tutorials/184275-internet-explorer-restore-remove-default-programs.html