Right Click Delay

The Problem:-Whenever one right clicks on any item it takes atleast fifteen seconds to open same thing happens when one tries to delete any item.

Solution:-
Right click on an empty area of Desktop>Properties.When the Display Properties box opens, click the Appearance tab, click the Effects button, left click to REMOVE the checkmark in the box to the left of: Use the following transition effect for menus and tooltips, click the OK button, then click the Apply and OK buttons at the bottom of theremaining box. You'd probably gain even more speed if you'd switch to the Classic Start Menu (Right click the Start button, left click Properties,select the option: Classic Start menu, click the Apply and OK buttons.

Registry Tweak:-
It's may be due to one of the context menu entries, one may need to remove one. But before doing this one must back up the following registry keys.These are the registry keys you will find them in, but many programs will have their own options to disable them.

Start>Run>Regedit>ok and navigate to the following keys:-

HKEY_CLASSES_ROOT\*\OpenWithList
HKEY_CLASSES_ROOT\*\shellex\ContextMenuHandlers
HKEY_CLASSES_ROOT\Directory\Background\shellex
HKEY_CLASSES_ROOT\Directory\shell
HKEY_CLASSES_ROOT\Directory\shellex\ContextMenuHandlers
HKEY_CLASSES_ROOT\Drive\shell
HKEY_CLASSES_ROOT\Drive\shellex\ContextMenuHandlers
HKEY_CLASSES_ROOT\Folder\shell
HKEY_CLASSES_ROOT\Folder\shellex\ContextMenuHandlers


Further References:-
Right-click is slow or weird behavior caused by context menu handlers
http://windowsxp.mvps.org/slowrightclick.htm

Right click causes an error and crashes Explorer.exe after installingWindows XP SP2
http://www.winxptutor.com/sp2/divxcrash.htm

Temporary Decrease in Performance Occurs When You Right-Click a File orFolder in Windows Explorer
http://support.microsoft.com/default.aspx?scid=kb;en-us;819101