Sometimes Windows Vista and 7 users face a strange problem. Whenever they right-click on an item or in free space, they get the old classic context menu instead of the new WPF enabled context menu as shown in following screenshot:

This problem occurs because of Norton products. Actually Norton installs its own entry in context menu which breaks whole context menu and Windows starts showing the classic context menu. As you can see in the above screenshot, there is an entry for "Norton AntiVirus".
To solve this problem, you just need to either disable Norton context menu entry from its Settings or uninstall Norton completely. It'll fix the problem and you'll get the new WPF enabled context menu back:

Also read:
[FIX] WinRAR Causes Wide Context Menu Bug in Windows Vista, Server 2008 and 7
This article was posted by VG in following section: Troubleshooting, Windows 7, Windows Vista.
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Nikolaj
What is WPF?
XibaD
This is not only caused by Norton, because I don't have Norton installed plus I have this annoying problem either.
Sora
Thanks for the solution vishal
Nikolaj
thank you
Shahnawaz
The same problem occurs when i installed Download Accelerator Plus(DAP) v9.0.
To overcome the problem just remove the DAP context menu entries from registry.
Go to HKEY_CLASSES_ROOT and expand "*",expand shellex and finally contextmenuhandlers and then delete DAP entries.
The same thing should be done for "directory" key.
Bill
Not a good solution to remove the antivirus....
However, have a solution to restore context menu for files ? If I rightclick a file the file manager ( whatever is - Explorer , Total Commander... ) freezes and show nothing. FOr Folders or Desktop everything goes fine...
XibaD
I think the fact is that are many explorer extensions that cause this issue. And I think that it would be impossible to put here them all. Personally I don't know which are causing mine, I have 7zip, Winrar, CIS and Spybot extensions... Could be one of them.
eldib
thank you
XibaD
I noticed that was CIS explorer extension causing odd menus in Vista / 7. Found it in COMODO forums. Disabling the extension is the only solution for now.
Ash
Hi VG, I just installed windows 7 prof. and I dont have norton antivirus but still I have this context menu problem. I searched google for hrs but I didnt find anything..
Please help
Thanks